Shia LaBeouf  stopped by Jimmy Kimmel Live last night for yet another appearance in support of Transformers: Dark of the Moon. Shia was in great spirits after a successful NY premiere earlier in the week, and while on the East Coast he also got to meet one of his biggest fans, Selena Gomez . Selena has often spoken about having a crush on Shia, and she was adorably star struck when they finally came face to face. Jimmy joked that Shia should watch his back since her boyfriend, Justin Bieber , is a pretty powerful guy, and Shia shared about meeting Justin at the MTV Movie Awards. Check it out!