Selena Gomez Goes All Out for Perez Hilton's Blue Birthday Bash

Selena Gomez Goes All Out for Perez Hilton's Blue Birthday Bash  Perez Hilton's Blue Ball Birthday Celebration.Siren Studios, Hollywood, CA.March 26, 2011. (Bauer Griffin)Selena Gomez, is that you?! The tween star was hardly recognizable in her awesome blue ensemble -- complete with gobs of blue makeup, a  short wig, and stunning dress -- at Perez Hilton's Blue Ball Birthday Celebration last