Now That’s What I Call Music 30 tops the Billboard album chart selling over 146-thousand copies, according to Nielsen SoundScan numbers. The compilation features hits from Lady GaGa, Britney Spears, Christina Aguilera, Ne-Yo, John Legend, Nickelback, Katy Perry, Taylor Swift and others. The soundtrack for Hannah Montana: The Movie bows in at number two and Keri Hilson’s first album, In a Perfect World, enters the chart at number four. Other debuts include Papa Roach’s Metamorphosis at number eight, Jim Jones’ Pray IV Reign at number nine and Martina McBride’s Shine at number 10. Last week’s chart-topper, Kelly Clarkson’s All I Ever Wanted, drops to number five and U2’s No Line On the Horizon slips four spots to number six. The Twilight soundtrack holds steady at number three, while Lady GaGa’s The Fame slides two spots to number seven.