Top 25 [NOW!] Artists of 2012

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INDIO%2C%20CA%20%26%238211%3B%20APRIL%2014%3A%20%20DJ%20David%20Guetta%20performs%20onstage%20at%20the%202012%20Coachella%20Valley%20Music%20%26amp%3B%20Arts%20Festival%20held%20at%20The%20Empire%20Polo%20Field%20on%20April%2014%2C%202012%20in%20Indio%2C%20California.%20%20%28Photo%20by%20Mark%20Davis%2FGetty%20Images%20for%20Coachella%29

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SANTA%20MONICA%2C%20CA%20%26%238211%3B%20AUGUST%2019%3A%20%20Flo%20Rida%20performs%20onstage%20during%20the%202012%20Do%20Something%20Awards%20%20at%20Barker%20Hangar%20on%20August%2019%2C%202012%20in%20Santa%20Monica%2C%20California.%20%20%28Photo%20by%20Kevin%20Winter%2FGetty%20Images%20for%20VH1%29

BEVERLY%20HILLS%2C%20CA%20%26%238211%3B%20APRIL%2018%3A%20%20Singer%20Rihanna%20performs%20onstage%20at%20the%2015th%20Annual%20%26%238220%3BAn%20Unforgettable%20Evening%26%238221%3B%20Benefiting%20EIF%26%238217%3Bs%20Women%26%238217%3Bs%20Cancer%20Research%20Fund%20held%20at%20The%20Beverly%20Hilton%20Hotel%20on%20April%2018%2C%202012%20in%20Beverly%20Hills%2C%20California.%20%20%28Photo%20by%20John%20Shearer%2FGetty%20Images%20for%20Entertainment%20Industry%20Foundation%29