01of 52Alicia KeysAlicia Keys.Amy Sussman/Getty ImagesHappy Birthday! The singer celebrates the big 4-0 on Jan. 25.02of 52Chris EvansNoam Galai/GettyCaptain America turns 40 on June 13.03of 52Justin TimberlakeJustin Timberlake.Larry Busacca/GettyThe father of two turns the big 4-0 on Jan. 31.04of 52Beyoncé KnowlesBeyonce Knowles-Carter.Dave Benett/WireImageQueen B celebrates on Sept. 4.05of 52Kelly RowlandKelly Rowland.Cindy Ord/GettyBeyoncé’s bestie also turns 40 this year, on Feb. 11.06of 52Jessica AlbaJessica Alba.Phillip Faraone/GettyLet’s get Honest: Alba turns 40 on April 28.07of 52Britney SpearsBritney Spears.Kevin Mazur/WireImageSpears was “Born to Make You Happy” on Dec. 2.08of 52Meghan MarkleCNNThe Duchess of Sussex will celebrate the milestone on Aug. 4.09of 52Amy SchumerAmy Schumer.Noam Galai/WireImageNothing funny here: Schumer is 40 on June 1.10of 52Natalie PortmanDavid Fisher/ShutterstockThe actress will be 40 on June 9.11of 52Nicole RichieChris Pizzello/Invision/AP/ShutterstockRichie will blow out the candles on Sept. 21.12of 52Rami MalekMike Marsland/WireImageThe Oscar winner celebrates on May 12.13of 52Serena WilliamsJean Catuffe/Getty ImagesThe tennis champ swings into 40 on Sept. 26.14of 52Roger FedererJP Yim/Getty.Federer turns 40 just weeks prior, on Aug. 8.15of 52Tom HiddlestonTom Dymond/ShutterstockTheAvengersstar turns 40 on Feb. 9.16of 52Danielle FishelPaul Archuleta/GettyTheBoy Meets Worldstar is 40 on May 5.17of 52Sienna MillerKristin Callahan/ACE Pictures/ShutterstockMiller’s birthday is amongh the last of the year, on Dec. 28.18of 52PitbullGary Hershorn-Pool/Getty ImagesDon’t Stop the Party: Pitbull turned 40 on Jan. 15.19of 52Taylor KitschFaye Sadou/MediaPunchClear eyes, full hearts, can’t forget the April 8 birthday for the actor.20of 52Krysten RitterTrust us: Ritter turns 40 on Dec. 16.21of 52Christina MilianChristina Milian.Tom Vickers/MOVI Inc.The mom-to-be will have even more to celebrate on Sept. 26 this year.22of 52Julia StilesJulia Stiles.Santiago Felipe/GettySave the Last Dance for Stiles' birthday celebration, on March 28.23of 52Rachel BilsonJesse Grant/GettyHard to believe Summer will be toasting her 40th this summer, on Aug. 25.24of 52Jennifer HudsonJennifer Hudson.Steven Ferdman/Getty ImagesYou’re gonna love that the Oscar winner turns 40 on Sept. 12.25of 52Joseph Gordon-LevittJoseph Gordon-Levitt.The Tonight Show with Jimmy Fallon/YouTubeWe don’t hate that the actor is turning 40 on Feb. 17.26of 52Larisa OleynikTibrina Hobson/GettyHis10 Things I Hate About Youcostar turns 40 on June 7.27of 52Susan Kelechi WatsonIsaiah Trickey/FilmMagicThis Isthe actress' birthdate: Nov. 11.28of 52Leslie Odom Jr.Disney+Odom’s Burr-thday is Aug. 6.29of 52Jonathan Taylor ThomasMatt Baron/BEImagesThe child star celebrates four decades on Sept. 8.30of 52Chad Michael MurrayStefanie Keenan/Getty Images for GQ.Another young star grows older: Murray’s birthday is Aug. 24.31of 52Paris HiltonJason Merritt/FilmMagicThe stars aren’t blind to Hilton’s big day of Feb. 17.32of 52Taylor KinneyNBCThe actor’s 40th is on July 15.33of 52Michelle DockeryMichelle Dockery.Theo Wargo/GettyIf only she could be back at Downton to celebrate her 40th on Dec. 15.34of 52Chrishell StauseChrishell Stause.John Shearer/GettySelling Sunset’s breakout star turns 40 on July 21.35of 52Kunal NayyarAmanda Edwards/WireImageThe actor will mark his birthday with aBangon April 30.36of 52Josh GadJosh Gad.Matt Winkelmeyer/GettyOlaf is all grown up: Gad turns 40 on Feb. 23.37of 52Alexis BledelSteve Granitz/WireImageCan you believe Rory Gilmore will be 40 on Sept. 16?38of 52Josh GrobanJosh Groban.John Woifsohn/GettyPerhaps the singer will serenade himself when he turns 40 on Feb. 27.39of 52Hayden ChristensenHayden Christensen.Richard Harbaugh/Disneyland ResortTheStar Warsstar turns 40 on April 19.40of 52Elijah WoodAstrid Stawiarz/Getty.Wood’s big day is Jan. 28.41of 52Bryce Dallas HowardBryce Dallas Howard on Her Feature Directorial Debut, ‘Dads’.Getty ImagesThe actress marks another trip around the sun on March 2.42of 52Uzo AdubaGregg DeGuire/FilmMagicNothing crazy about this: Aduba turns 40 on Feb. 10.43of 52Patrick J. AdamsTibrina Hobson/Getty.TheSuitsstar celebrates 40 on Aug. 27.44of 52Abigail SpencerJoe Scarnici/Getty Images for CadillacHis costar is 40, too, this year, on Aug. 4.45of 52Keyshia ColeMatt Baron/REX/Shutterstock.Singer Cole turns 40 on Oct. 15.46of 52Jesse WilliamsBruce Glikas/WireImageWilliams celebrates the big 4-0 on Aug. 5.47of 52Alessandra AmbrósioBACKGRIDThe Victoria’s Secret Angel flies into 40 on Feb. 11.48of 52Adriana LimaDaniele Venturelli/WireImageHer fellow supermodel is also 40 this year, on June 12.49of 52Meagan GoodIt’ll be a Good day when the actress turns 40 on Aug. 8.50of 52Rachel PlattenJohn Salangsang/Variety/REX/Shutterstock.We’ll all sing “Fight Song” in her honor on May 20.51of 52Caterina ScorsoneRandy Shropshire/GettyTheGrey’s Anatomystar turns 40 on Oct. 16.52of 52Beverley MitchellRodin Eckenroth/GettyThe7th Heavenstar turned 40 on Jan. 22.
01of 52Alicia KeysAlicia Keys.Amy Sussman/Getty ImagesHappy Birthday! The singer celebrates the big 4-0 on Jan. 25.
01of 52
Alicia Keys
Alicia Keys.Amy Sussman/Getty Images
Happy Birthday! The singer celebrates the big 4-0 on Jan. 25.
02of 52Chris EvansNoam Galai/GettyCaptain America turns 40 on June 13.
02of 52
Chris Evans
Noam Galai/Getty
Captain America turns 40 on June 13.
03of 52Justin TimberlakeJustin Timberlake.Larry Busacca/GettyThe father of two turns the big 4-0 on Jan. 31.
03of 52
Justin Timberlake
Justin Timberlake.Larry Busacca/Getty
The father of two turns the big 4-0 on Jan. 31.
04of 52Beyoncé KnowlesBeyonce Knowles-Carter.Dave Benett/WireImageQueen B celebrates on Sept. 4.
04of 52
Beyoncé Knowles
Beyonce Knowles-Carter.Dave Benett/WireImage
Queen B celebrates on Sept. 4.
05of 52Kelly RowlandKelly Rowland.Cindy Ord/GettyBeyoncé’s bestie also turns 40 this year, on Feb. 11.
05of 52
Kelly Rowland
Kelly Rowland.Cindy Ord/Getty
Beyoncé’s bestie also turns 40 this year, on Feb. 11.
06of 52Jessica AlbaJessica Alba.Phillip Faraone/GettyLet’s get Honest: Alba turns 40 on April 28.
06of 52
Jessica Alba
Jessica Alba.Phillip Faraone/Getty
Let’s get Honest: Alba turns 40 on April 28.
07of 52Britney SpearsBritney Spears.Kevin Mazur/WireImageSpears was “Born to Make You Happy” on Dec. 2.
07of 52
Britney Spears
Britney Spears.Kevin Mazur/WireImage
Spears was “Born to Make You Happy” on Dec. 2.
08of 52Meghan MarkleCNNThe Duchess of Sussex will celebrate the milestone on Aug. 4.
08of 52
Meghan Markle
CNN
The Duchess of Sussex will celebrate the milestone on Aug. 4.
09of 52Amy SchumerAmy Schumer.Noam Galai/WireImageNothing funny here: Schumer is 40 on June 1.
09of 52
Amy Schumer
Amy Schumer.Noam Galai/WireImage
Nothing funny here: Schumer is 40 on June 1.
10of 52Natalie PortmanDavid Fisher/ShutterstockThe actress will be 40 on June 9.
10of 52
Natalie Portman
David Fisher/Shutterstock
The actress will be 40 on June 9.
11of 52Nicole RichieChris Pizzello/Invision/AP/ShutterstockRichie will blow out the candles on Sept. 21.
11of 52
Nicole Richie
Chris Pizzello/Invision/AP/Shutterstock
Richie will blow out the candles on Sept. 21.
12of 52Rami MalekMike Marsland/WireImageThe Oscar winner celebrates on May 12.
12of 52
Rami Malek
Mike Marsland/WireImage
The Oscar winner celebrates on May 12.
13of 52Serena WilliamsJean Catuffe/Getty ImagesThe tennis champ swings into 40 on Sept. 26.
13of 52
Serena Williams
Jean Catuffe/Getty Images
The tennis champ swings into 40 on Sept. 26.
14of 52Roger FedererJP Yim/Getty.Federer turns 40 just weeks prior, on Aug. 8.
14of 52
Roger Federer
JP Yim/Getty.
Federer turns 40 just weeks prior, on Aug. 8.
15of 52Tom HiddlestonTom Dymond/ShutterstockTheAvengersstar turns 40 on Feb. 9.
15of 52
Tom Hiddleston
Tom Dymond/Shutterstock
TheAvengersstar turns 40 on Feb. 9.
16of 52Danielle FishelPaul Archuleta/GettyTheBoy Meets Worldstar is 40 on May 5.
16of 52
Danielle Fishel
Paul Archuleta/Getty
TheBoy Meets Worldstar is 40 on May 5.
17of 52Sienna MillerKristin Callahan/ACE Pictures/ShutterstockMiller’s birthday is amongh the last of the year, on Dec. 28.
17of 52
Sienna Miller
Kristin Callahan/ACE Pictures/Shutterstock
Miller’s birthday is amongh the last of the year, on Dec. 28.
18of 52PitbullGary Hershorn-Pool/Getty ImagesDon’t Stop the Party: Pitbull turned 40 on Jan. 15.
18of 52
Pitbull
Gary Hershorn-Pool/Getty Images
Don’t Stop the Party: Pitbull turned 40 on Jan. 15.
19of 52Taylor KitschFaye Sadou/MediaPunchClear eyes, full hearts, can’t forget the April 8 birthday for the actor.
19of 52
Taylor Kitsch
Faye Sadou/MediaPunch
Clear eyes, full hearts, can’t forget the April 8 birthday for the actor.
20of 52Krysten RitterTrust us: Ritter turns 40 on Dec. 16.
20of 52
Krysten Ritter
Trust us: Ritter turns 40 on Dec. 16.
21of 52Christina MilianChristina Milian.Tom Vickers/MOVI Inc.The mom-to-be will have even more to celebrate on Sept. 26 this year.
21of 52
Christina Milian
Christina Milian.Tom Vickers/MOVI Inc.
The mom-to-be will have even more to celebrate on Sept. 26 this year.
22of 52Julia StilesJulia Stiles.Santiago Felipe/GettySave the Last Dance for Stiles' birthday celebration, on March 28.
22of 52
Julia Stiles
Julia Stiles.Santiago Felipe/Getty
Save the Last Dance for Stiles' birthday celebration, on March 28.
23of 52Rachel BilsonJesse Grant/GettyHard to believe Summer will be toasting her 40th this summer, on Aug. 25.
23of 52
Rachel Bilson
Jesse Grant/Getty
Hard to believe Summer will be toasting her 40th this summer, on Aug. 25.
24of 52Jennifer HudsonJennifer Hudson.Steven Ferdman/Getty ImagesYou’re gonna love that the Oscar winner turns 40 on Sept. 12.
24of 52
Jennifer Hudson
Jennifer Hudson.Steven Ferdman/Getty Images
You’re gonna love that the Oscar winner turns 40 on Sept. 12.
25of 52Joseph Gordon-LevittJoseph Gordon-Levitt.The Tonight Show with Jimmy Fallon/YouTubeWe don’t hate that the actor is turning 40 on Feb. 17.
25of 52
Joseph Gordon-Levitt
Joseph Gordon-Levitt.The Tonight Show with Jimmy Fallon/YouTube
We don’t hate that the actor is turning 40 on Feb. 17.
26of 52Larisa OleynikTibrina Hobson/GettyHis10 Things I Hate About Youcostar turns 40 on June 7.
26of 52
Larisa Oleynik
Tibrina Hobson/Getty
His10 Things I Hate About Youcostar turns 40 on June 7.
27of 52Susan Kelechi WatsonIsaiah Trickey/FilmMagicThis Isthe actress' birthdate: Nov. 11.
27of 52
Susan Kelechi Watson
Isaiah Trickey/FilmMagic
This Isthe actress' birthdate: Nov. 11.
28of 52Leslie Odom Jr.Disney+Odom’s Burr-thday is Aug. 6.
28of 52
Leslie Odom Jr.
Disney+
Odom’s Burr-thday is Aug. 6.
29of 52Jonathan Taylor ThomasMatt Baron/BEImagesThe child star celebrates four decades on Sept. 8.
29of 52
Jonathan Taylor Thomas
Matt Baron/BEImages
The child star celebrates four decades on Sept. 8.
30of 52Chad Michael MurrayStefanie Keenan/Getty Images for GQ.Another young star grows older: Murray’s birthday is Aug. 24.
30of 52
Chad Michael Murray
Stefanie Keenan/Getty Images for GQ.
Another young star grows older: Murray’s birthday is Aug. 24.
31of 52Paris HiltonJason Merritt/FilmMagicThe stars aren’t blind to Hilton’s big day of Feb. 17.
31of 52
Paris Hilton
Jason Merritt/FilmMagic
The stars aren’t blind to Hilton’s big day of Feb. 17.
32of 52Taylor KinneyNBCThe actor’s 40th is on July 15.
32of 52
Taylor Kinney
NBC
The actor’s 40th is on July 15.
33of 52Michelle DockeryMichelle Dockery.Theo Wargo/GettyIf only she could be back at Downton to celebrate her 40th on Dec. 15.
33of 52
Michelle Dockery
Michelle Dockery.Theo Wargo/Getty
If only she could be back at Downton to celebrate her 40th on Dec. 15.
34of 52Chrishell StauseChrishell Stause.John Shearer/GettySelling Sunset’s breakout star turns 40 on July 21.
34of 52
Chrishell Stause
Chrishell Stause.John Shearer/Getty
Selling Sunset’s breakout star turns 40 on July 21.
35of 52Kunal NayyarAmanda Edwards/WireImageThe actor will mark his birthday with aBangon April 30.
35of 52
Kunal Nayyar
Amanda Edwards/WireImage
The actor will mark his birthday with aBangon April 30.
36of 52Josh GadJosh Gad.Matt Winkelmeyer/GettyOlaf is all grown up: Gad turns 40 on Feb. 23.
36of 52
Josh Gad
Josh Gad.Matt Winkelmeyer/Getty
Olaf is all grown up: Gad turns 40 on Feb. 23.
37of 52Alexis BledelSteve Granitz/WireImageCan you believe Rory Gilmore will be 40 on Sept. 16?
37of 52
Alexis Bledel
Steve Granitz/WireImage
Can you believe Rory Gilmore will be 40 on Sept. 16?
38of 52Josh GrobanJosh Groban.John Woifsohn/GettyPerhaps the singer will serenade himself when he turns 40 on Feb. 27.
38of 52
Josh Groban
Josh Groban.John Woifsohn/Getty
Perhaps the singer will serenade himself when he turns 40 on Feb. 27.
39of 52Hayden ChristensenHayden Christensen.Richard Harbaugh/Disneyland ResortTheStar Warsstar turns 40 on April 19.
39of 52
Hayden Christensen
Hayden Christensen.Richard Harbaugh/Disneyland Resort
TheStar Warsstar turns 40 on April 19.
40of 52Elijah WoodAstrid Stawiarz/Getty.Wood’s big day is Jan. 28.
40of 52
Elijah Wood
Astrid Stawiarz/Getty.
Wood’s big day is Jan. 28.
41of 52Bryce Dallas HowardBryce Dallas Howard on Her Feature Directorial Debut, ‘Dads’.Getty ImagesThe actress marks another trip around the sun on March 2.
41of 52
Bryce Dallas Howard
Bryce Dallas Howard on Her Feature Directorial Debut, ‘Dads’.Getty Images
The actress marks another trip around the sun on March 2.
42of 52Uzo AdubaGregg DeGuire/FilmMagicNothing crazy about this: Aduba turns 40 on Feb. 10.
42of 52
Uzo Aduba
Gregg DeGuire/FilmMagic
Nothing crazy about this: Aduba turns 40 on Feb. 10.
43of 52Patrick J. AdamsTibrina Hobson/Getty.TheSuitsstar celebrates 40 on Aug. 27.
43of 52
Patrick J. Adams
Tibrina Hobson/Getty.
TheSuitsstar celebrates 40 on Aug. 27.
44of 52Abigail SpencerJoe Scarnici/Getty Images for CadillacHis costar is 40, too, this year, on Aug. 4.
44of 52
Abigail Spencer
Joe Scarnici/Getty Images for Cadillac
His costar is 40, too, this year, on Aug. 4.
45of 52Keyshia ColeMatt Baron/REX/Shutterstock.Singer Cole turns 40 on Oct. 15.
45of 52
Keyshia Cole
Matt Baron/REX/Shutterstock.
Singer Cole turns 40 on Oct. 15.
46of 52Jesse WilliamsBruce Glikas/WireImageWilliams celebrates the big 4-0 on Aug. 5.
46of 52
Jesse Williams
Bruce Glikas/WireImage
Williams celebrates the big 4-0 on Aug. 5.
47of 52Alessandra AmbrósioBACKGRIDThe Victoria’s Secret Angel flies into 40 on Feb. 11.
47of 52
Alessandra Ambrósio
BACKGRID
The Victoria’s Secret Angel flies into 40 on Feb. 11.
48of 52Adriana LimaDaniele Venturelli/WireImageHer fellow supermodel is also 40 this year, on June 12.
48of 52
Adriana Lima
Daniele Venturelli/WireImage
Her fellow supermodel is also 40 this year, on June 12.
49of 52Meagan GoodIt’ll be a Good day when the actress turns 40 on Aug. 8.
49of 52
Meagan Good
It’ll be a Good day when the actress turns 40 on Aug. 8.
50of 52Rachel PlattenJohn Salangsang/Variety/REX/Shutterstock.We’ll all sing “Fight Song” in her honor on May 20.
50of 52
Rachel Platten
John Salangsang/Variety/REX/Shutterstock.
We’ll all sing “Fight Song” in her honor on May 20.
51of 52Caterina ScorsoneRandy Shropshire/GettyTheGrey’s Anatomystar turns 40 on Oct. 16.
51of 52
Caterina Scorsone
Randy Shropshire/Getty
TheGrey’s Anatomystar turns 40 on Oct. 16.
52of 52Beverley MitchellRodin Eckenroth/GettyThe7th Heavenstar turned 40 on Jan. 22.
52of 52
Beverley Mitchell
Rodin Eckenroth/Getty
The7th Heavenstar turned 40 on Jan. 22.
source: people.com