US pop star Kesha may be known for her hip-hop leaning EDM-pop hybrid, but she has a rock and roll side to her. Not many people know that she wrote for rock great Alice Cooper on his 2011 album “Welcome 2 My Nightmare”. Cooper met Kesha at the Grammys, and recalled telling a friend “This girl is not a pop diva. She's a rock singer. She would much rather be the female Robert Plant than the next Britney Spears.” Kesha eventually went on to work with rock stars of note - Black Keys' Patrick Carney, the Flaming Lips and even Iggy Pop, on her 2012 album “Warrior”.
source : the daily star