Avril Lavigne

Again, this one may be a thong, no guarantee, but it appears Avril Lavigne might be wearing a g-string here, decide yourself, post a comment!

Avril Lavigne

A lot of controversy over whether Avril is wearing a thong here, but I'd like to think that she is so I decided to post it. The second red line makes me think thong.

Avril Lavigne

Not exactly a thong, but the shorts/underwear she is wearing here go pretty far up giving us a nice view of her ass.