Youtube! Avril Lavigne takes off her underwear into lingerie in her newest music video

She has been teasing her fans over the past few days about a little surprise that she had made for them.

Today, Avril Lavigne finally revealed her gift to some 4million followers on Twitter and showed a very different side to the skater girl they had all come to know.

Scroll Down to watch video . . . .

Friends with benefits: The video was filmed by Avril's good pal Mark Riddell at the Chateau Marmont in West Hollywood (Read more, See more Pictures, and Watch Video)