Dolly Parton and Kesha both credit this women as a co-writer on their kit songs.  What is her name?
Warrior (Kesha album):  It features guest vocals from American rock singer Iggy Pop, who has been cited as a major influence on the album, as well as writing contributions from Nate Ruess from American indie rock trio Fun, American rapper will.i.am, singer-songwriter Bonnie McKee, The Black Keys drummer Patrick Carney, American rock bands The Strokes and The Flaming Lips and Kesha's own mother, Pebe Sebert. Pebe Sebert:  Pebe is best known for co-writing number-one hits for Dolly Parton, Pitbull and Kesha.
Pebe Sebert