She may be dating the most swoon-worthy guy in Hollywood, but that doesn't mean Selena Gomez doesn't have her own celebrity crush. And it's Shia LaBeouf, to be exact!

While backstage at a TV appearance, Selena's friends surprised her by arranging a meet-and-greet with the Transformers 3 star and her reaction was just priceless.

"Oh my gosh," Selena gushed as she spotted Shia and ran out of the room. "He's so handsome!"

Click through to watch Selena freak out while meeting her ultimate crush!