Avril Lavigne celebrated the release of her fourth album, Goodbye Lullaby, with her boyfriend Brody Jenner on Tuesday, March 8, 2011 at the SL Lounge in New York City.

Avril and Brody joined Brody’s stepsister Kim Kardashian and her beau, NBA player Kris Humphries, at party. Kim even posed with Lavigne on the red carpet.

Avril has been making her rounds on the talk shows to help promote the new album. Lavigne is not only a singer – she has a couple of fragrances and her own clothing line, Abbey Dawn.

Have you heard any of the songs off her new album?? What do you think?