Katy Perry - First US Appearance Since Split!

Katy Perry made her first public appearance last night since her split with soon to be ex-hubby, Russell Brand.  She attended the GiveLove evert and 1 Oak Tweeting:

Thanks to everyone who helped out w/the @givelove event at Mirage & 1 Oak LV. Go to http://t.co/uTCGhC9D to see how u can MAKE a difference!

Love the hair!  And don't think that's a new boyfriend on her arm, it's just Katy Perry's friend, jewelry designer and celebutante, Markus Molinari.