Breakout, Miley Cyrus: 313,000
Meet Miley Cyrus/Hannah Montana 2, Miley Cyrus: 200,000
Bangerz, Miley Cyrus: 160,000
The Time Of Our Lives, Miley Cyrus: 141,000
Hannah Montana, Miley Cyrus: 100,000
Most Wanted, Hilary Duff: 100,000
Can't Be Tamed, Miley Cyrus: 65,000
Kiss & Tell, Selena Gomez: 60,000
A Year Without Rain, Selena Gomez: 60,000
DEMI, Demi Lovato: 40,000
When The Sun Goes Down, Selena Gomez: 37,000
Stars Dance, Selena Gomez: 20,000
Miley: 980,000
Selena: 177,000
Hilary: 100,000+
Demi: 40,000+
Source 1
Source 2
Source 3
Source 4