Festival goers run toward the main stage to catch the beginning of Kendrick Lamar's set during the first weekend of Coachella 2012, on April 13, 2012. (AP Photo/Chris Pizzello)
Shy'm poses as she arrives at NRJ Music Awards 2012 at Palais des Festivals on January 28, 2012 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)
Ke$ha performs live on stage during the second day of the Wireless Festival at Hyde Park on July 2, 2011 in London, England. (Photo by Jim Dyson/Getty Images)