Need proof rock keeps you young? Just look at Bif Naked.

The Winnipeg-bred pop-punk queen is pushing 35, but she's still as taut, toned and tattooed as any teen mallrat. Her music, on the other hand, is beginning to sport a few interesting wrinkles.

Bif's fourth full-length Superbeautifulmonster is the Bettie-banged belly-barer's most grownup offering to date; a dark, ominous storm cloud of a disc that downplays the radio-ready anthems of Purge in favour of heavier grooves, harder-hitting beats and menacing guitars.

Forget about the daily affirmations of I Love Myself Today; these 13 cuts find the girlish growler tackling feelings of abandonment, betrayal and inferiority. That is, when she isn't trying to yank your clothes off on sexed-up rockers like Yeah, You and Funeral of a Good Grrl.

So OK, maybe she hasn't grown up completely yet. But when a popster like the Bifster can pull off a broodingly beautiful cover of Metallica's mournfully heavy Nothing Else Matters, it's clearly a sign that she's older and wiser. Even if you can't tell by looking at her.