AceShowbiz -

Selena Gomez showed a genuine reaction when finally coming face to face with her idol, Shia LaBeouf. The Disney cutie was unprepared when she walked into a dressing room where the "Transformers" actor was getting a touch-up because she was tricked by her friends who said it was a fan.

In a YouTube video she posted Tuesday, June 28 night, Selena left the room immediately when finding out that it was Shia. But the actor came after her and said, "Hey, nice to meet you. How are you?" before giving her a hug. "I'm so sorry to bother you," she told him.

Shia said, "Thanks for being so sweet to me. You're really sweet to me." Selena replied, "I admire you." They posed for a couple of pictures before Shia went back to his make-up room and Selena hid in hers. "He's so cute," she said when she was alone with her girlfriends. "Oh my gosh, he's so handsome."

Selena's crush on Shia is no secret for she had mentioned his name several times in interviews. "He did it really well. He's talented and doing wonderful things. Everybody has their own vision of how they want things to play out," she revealed her idol.

Selena is now dating Justin Bieber and Shia is with Hollywood stylist Karolyn Pho.