Katy Perry Throws a Private Party in West Hollywood
08/12/2011 AT 06:00 AM EDT
Katy Perry hosted her own private party at West Hollywood's Trousdale Lounge for her close friends and family, according to an insider. The singer was joined by Swedish singer Robyn, who is opening for Perry on her current tour, and the group danced and popped bottles of champagne all night. Missing, however, from the bash: her hubby Russell Brand who's filming Rock of Ages.