Katy Perry vamped it up this weekend at her 28th Birthday Bash at the Magic Castle in Los Angeles. From red eye contacts to sharp teeth, she made one perfectly spooky vampire for the night. Her beau, John Mayer, joined in on the festivities attending as a not-so-cute Zombie Hunter. The Trend Boutique wants to get you in with the bloody fun with Vampire-inspired tees from Wildfox. Shop your faves today!