Avril Lavigne's New Single "What The Hell" Is The Best Damn Thing

Oh, damn—Avril Lavigne's new Max Martin jam "What The Hell" not only rocks, it's available for free (today only) over on her Facebook page.

Here she is performing it last night on Dick Clark's Rockin' New Year's Eve...I'm sure somewhere underneath the backing track she's actually humming a word or two:



Britney's new trash had better be this good.