Nearly one year after announcinghis splitfromJenna Dewanfollowing nine years of marriage,Channing Tatumhasa new lady in his life:pop starJessie J.Tatum, 38, has been dating the British singer, 30, since October, and went to London last week with Jessie to see her friends and family.“It was their first trip together to England as a couple,” a source tells PEOPLE in this week’s issue. “They seem pretty serious.”The insider adds that Tatum and Jessie also spend time together back in Los Angeles with Everly,theMagic Mikestar’s5-year-old daughterwho he shares with Dewan, 38.RELATED VIDEO:Channing Tatumand Jenna Dewan Have Been Dating New People 5 Months After Split: SourcesTatum and Jessie have been making their relationship increasingly public in the last few weeks, most recently beingphotographed together for the first timeduring their trip to London on Thursday.Jessie J and Channing Tatum.MEGALast month, the actorleft a flirty commenton Jessie’s Instagram picture, which showed her posing in a black bikini and mesh coverup next to plates of food, including nachos and rice.“Hottest Instagram food model in the came right now,” he wrote underneath the Feb. 28 snap.For more onChanning Tatumand Jessie J, pick up the latest issue of PEOPLE, on newsstands Friday.Dewan has also moved on. PEOPLEconfirmed in Octoberthat she and Broadway starSteve Kazeehad been “dating for months.”

Nearly one year after announcinghis splitfromJenna Dewanfollowing nine years of marriage,Channing Tatumhasa new lady in his life:pop starJessie J.

Tatum, 38, has been dating the British singer, 30, since October, and went to London last week with Jessie to see her friends and family.

“It was their first trip together to England as a couple,” a source tells PEOPLE in this week’s issue. “They seem pretty serious.”

The insider adds that Tatum and Jessie also spend time together back in Los Angeles with Everly,theMagic Mikestar’s5-year-old daughterwho he shares with Dewan, 38.

RELATED VIDEO:Channing Tatumand Jenna Dewan Have Been Dating New People 5 Months After Split: Sources

Tatum and Jessie have been making their relationship increasingly public in the last few weeks, most recently beingphotographed together for the first timeduring their trip to London on Thursday.

Jessie J and Channing Tatum.MEGA

Channing Tatum and Jessie J are seen hand in hand in London as they stroll through knightsbridge shopping

Last month, the actorleft a flirty commenton Jessie’s Instagram picture, which showed her posing in a black bikini and mesh coverup next to plates of food, including nachos and rice.

“Hottest Instagram food model in the came right now,” he wrote underneath the Feb. 28 snap.

For more onChanning Tatumand Jessie J, pick up the latest issue of PEOPLE, on newsstands Friday.

Dewan has also moved on. PEOPLEconfirmed in Octoberthat she and Broadway starSteve Kazeehad been “dating for months.”

source: people.com