Rosemary Patricia "Pebe" Sebert (born March 17, 1956) is an American singer-songwriter from Brentwood, Tennessee, who is the mother of singer-songwriter Kesha. Pebe is best known for co-writing number-one hits for Dolly Parton, Pitbull and Kesha. Sebert and Kesha have written 11 released songs together. The songs Sebert wrote for other artists have combined sales of over 8 million copies in the United States alone.