Jenna Dewan

(heading to a Halloween party in LA) is dating!

Moving on! Jenna Dewan is dating Steve Kazee, a source confirms to Us. On Oct. 29, one week after filing for divorce from estranged husband Channing Tatum, the actress, 37, was seen with the Tony Award winner, 42, at an LA Haunted Hayride. They were "holding hands" and being "cute and cuddly," says an onlooker, noting that the new pair looked like they were having a blast. "They seemed very happy."