Singer Avril Lavigne poses during a news conference in Tokyo April 26, 2007. [Reuters]

She's grown up already. Avril Lavigne shows her mature side by posing topless for the June 2007 issue of Blender magazine.

The singer takes her top clothes off for the cover of the publication, with more pictures inside show her drinking in one angle and smoking on the other.

Avril, a punk singer, sat down with Blender to discuss the writing of her single "Girlfriend," boys, booze and the pursuit of happiness.

Avril's very revealing cover shoot screams, "Hell Yeah, I'm Hot." Is she? You be the judge.