Russell Brand who?
Katy Perry made her first official appearance since her divorce last night and the pop diva looked as happy as a clam.
Katy played hostess and showed off her blue hair at the 1 Oak At The Mirage grand opening in Las Vegas.
The Fireworks singer posed with one of her besties, Markus Molinariat who never left her side.
Katy appeared to be all smiles full of laughs and having a good time.
The event was tied to the charity GiveLove.Org and the star tweeted her great appreciation saying "Thanks to everyone who helped out w/ (with) the Give Love event at Mirage & 1 Oak LV. Go to Givelove.org to see how u can make a difference!"
It's good to see Katy is keeping busy and supporting a good cause. We wonder what Russell Brand is up to?
Check out her and her bestie working the red carpet for a good cause in the gallery above.