At the moment Katy Perry is living the teenage dream.

As some of you might know shes recently got devorced from Russel Brand and now can sex it up with new boyfriend Audrina Patridge.

Usually Katy  is busy playing everyone else’s Teenage Dream so we’re sure it was nice to hand over the reigns for an evening and just enjoy the show.

Katy danced to the tunes, knocked back a few brews, and appeared to have a ball.

One concertgoer revealed:

“As her bra strap slid off of her left shoulder, a smiling Katy began to dance around to the band’s hit, ‘VCR.’ She was with a crew of pals, including her assistant and a few guy friends.”

Audrina Patridge was also on hand to see the indie-rock band. She even made it out to see them at the Hollywood Tower for a specialevent earlier in the day!

Though she mostly kept a low profile, a few onlookers noticed her. One said:

“Her hair was more blonde than usual. She looked really thin, but fit and pretty.”