Top 10 music hits on billboard chart

1.Firework   Katy Perry

2.Grenade   Bruno Mars

3.What's My Name?   Rihanna Featuring Drake

4.Raise Your Glass   P!nk

5.We R Who We R   Ke$ha

6.Just The Way You Are   Bruno Mars

7.Only Girl (In The World)   Rihanna

8.The Time (Dirty Bit)   The Black Eyed Peas

9.6 foot 7 foot    Lil Wayne Featuring Cory Gunz

10.Just A Dream   Nelly