Top of the charts

1. Katy Perry Firework 2. Pink Raise Your Glass 3. Rihanna feat. Drake Whats My Name? 4. The Black Eyed Peas The Time (Dirty Bit) 5. Bruno Mars Grenade 6. Rihanna Only Girl (In the World) 7. Bruno Mars Just the Way You Are 8. Ke$ha We R Who We R 9.