Avril Lavigne: 'What the Hell' Song Premiere!

Avril Lavigne’s new single “What the Hell,” off her upcoming album Goodbye, Lullaby, has finally debuted!

The 26-year-old singer performed the song last night (December 31) during Dick Clark’s New Year’s Rockin’ Eve with Ryan Seacrest.

“What the Hell” is co-written by Max Martin, who is the man behind such hits as Britney Spears‘ “…Baby One More Time,” Kelly Clarkson’s “Since U Been Gone,” and Pink’s “So What.”