Katy Perry has been keeping busy since her split from Russell Brand, and now she's ready for her first big night out. The 27-year-old singer is slated to party in Las Vegas for a good cause, making her first post-split appearance at the grand opening of of 1 OAK Las Vegas at The Mirage Hotel on Friday (January 27th).

The "Waking Up In Vegas" singer will join her friend Markus Molinari of J.Molinari Jewelers at the party that's also a benefit for co-founder Patricia Arquette's charity GiveLove, which aims to develop temporary housing solutions and improved sanitation systems in Haiti.

Moving on, moving on, and the paychecks keep on a-coming. That always help deaden the sting.....go Katy!

Source: Huffington Post