Lauren Conrad's been hanging with ex, Brody Jenner, but don't feel bad for former flame, Jason Wahler -- he's rocking some major game with the ladies. (Yeah, right!)

TMZ cameras caught the ex-con trying to mack it with Bai Ling in Beverly Hills last night. Among his awful pickup lines? "I just finished a movie." Ugh! Then, Jason got the But Can They Sing? contestant's digits, saying "I'm going to call you though, let's go get dinner sometime." That's one date we'd love to be a fly on the wall for!