FILE - In this Sept. 11, 2011 file photo, U.S. pop singer Ke$ha performs during the Rock in Rio music festival in Rio de Janeiro, Brazil. MTV announced late Tuesday, Jan. 29, 2013, that the pop singer will debut a documentary series, “Ke$ha: My Crazy Beautiful Life,” in April. (AP Photo/Silvia Izquierdo, File)

Associated Press
FILE - In this Sept. 11, 2011 file photo, U.S. pop singer Ke$ha performs during the Rock in Rio music festival in Rio de Janeiro, Brazil.  MTV announced late Tuesday, Jan. 29, 2013, that the pop singer will debut a documentary series, “Ke$ha: My Crazy Beautiful Life,” in April. (AP Photo/Silvia Izquierdo, File)
FILE - In this Sept. 11, 2011 file photo, U.S. pop singer Ke$ha performs during the Rock in Rio music festival in Rio de Janeiro, Brazil. MTV announced late Tuesday, Jan. 29, 2013, that the pop singer will debut a documentary series, “Ke$ha: My Crazy Beautiful Life,” in April. (AP Photo/Silvia Izquierdo, File)
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