Katy Perry Dances to Britney Spears at West Hollywood Night Club
06/05/2012 AT 05:55 AM EDT
Right across the street from local celebrity favorite spot The Abbey, the "Part of Me" singer didn't go incognito as entered the venue with her purple hair capping off a red dress .
"The DJ announced a little after midnight that she was there," a club-goer tells PEOPLE. "She partied at a booth with a bunch of males who definitely appeared to be just friends. She had some kind of beverage in her hand."
Standing on a banquette at one point, the source says Perry "danced to Britney Spears' s hit '...Baby One More Time.'
"Katy was in a roped-off area, but she was still accessible to her fans," the source adds. "She was posing for photos with people at the club and seemed to be having a great time." That's for sure: that night, the singer quoted Spice Girls on Twitter, writing, "If you wanna be my lover you gotta get with my friends. #fact."
Once it was announced that Perry was on the premises, the source says, "The line got super long and it was really hard for people to get in."
– Patrick Gomez