I love all the avatars I've used

NG's avatars:
Britney Spears "My Prerogative"
Britney Spears "Do Somethin'"
Jesse McCartney "She's No You"
Britney Spears "Someday (I Will Understand)"

Sama's avatar:
Britney Spears "Someday (I Will Understand)"

Vitor's avatars:
Kelly Clarkson "Because of You"
Madonna "Sorry" (I'm currently using it)

I like Mazen's avatar too, especially since I dont especially like Christina Milian.

All NG's, Vitors, and Chris avatars are great!