CHRISTINA Aguilera might be a humongous mega-star, but so is Adele and it doesn't look like she has ANY qualms about giving her a few tips.
Audrina Patridge Autumn Reeser Avril Lavigne Bali Rodriguez Bar Refaeli Beyoncé
Audrina Patridge Autumn Reeser Avril Lavigne Bali Rodriguez Bar Refaeli Beyoncé