MTV made ​​a list of the most powerful voices of 2011 :

1. "Hair" - Lady GaGa
2. "Rolling In The Deep" - Adele
3. "Skyscraper" - Demi Lovato
4. "Wild Horses" - Susan Boyle
5. "Firework" - Katy Perry
6. "F***ing Perfect" - Pink
7. "Americano" - Lady GaGa
8. "Scars" - Miley Cyrus
9. "Monster" - Paramore
10. T"ake Me Along" - Miley Cyrus