Kim Kardashian, Brody Jenner Celebrate Avril Lavigne’s New Album (PHOTOS)

Avril Lavigne’s got a smash hit on her hands with “What the Hell,” and the expectations for her new album Goodbye Lullaby are as big as ever, so the support of her famous pals will only help the Canadian crooner’s comeback.

At the big release party for Lullaby, Avril — clad in a shiny purple top, chunky black necklace and rainbow-colored hair — smiled ear-to-ear as boyfriend Brody Jenner and his step-sister Kim Kardashian lent their support to Avril. With the color spectrum covered by Lavigne, Kim went demure in all-white on top and black leather pants.

Lavigne’s single “What the Hell” has racked up nearly 30 million views on YouTube since being released, and has gotten constant radio play thanks to Lavigne’s return to insanely catchy hooks and a bit of a confessional spirit. The lyrics sing about a woman newly freed from a relationship who just wants to “mess around” — which can easily be interpreted as a post-divorce ditty after her split from Deryck Whibley.

Check out the video here: