Rihanna & Katy Perry Party Together in New York City!

Katy Perry and Rihanna sandwich in Major Lazer‘s Walshy Fire while attending his birthday party on Friday (April 25) at 1 Oak in New York City. Diplo, who is rumored to be dating Katy and is also a member of Major Lazer, performed a surprise set at the party until 3:30am. The guys also debuted