Dolly Parton and Kesha both credit this women as a co-writer on their kit songs.  What is her name?
Pebe Sebert 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. In 2013, Sebert appeared as a regular on reality show "", which starred Kesha and was filmed by her son Lagan.
Kathy Mattea Kathleen Alice "Kathy" Mattea (born June 21, 1959) is an American country music and bluegrass performer who often brings folk, Celtic, and traditional country sounds to her music. Active since 1984 as a recording artist, she has charted more than thirty singles on the "Billboard" Hot Country Songs charts, including four that reached No. 1: "Goin' Gone", "Eighteen Wheels and a Dozen Roses", "Come from the Heart", and "Burnin' Old Memories", plus twelve more that charted within the top ten. Mattea released ten studio albums, a Christmas album, and a greatest hits package for Mercury Nashville between 1984 and 2000, and four more albums on independent labels after that. She has collaborated with Dolly Parton, Michael McDonald, Tim O'Brien, and her longtime husband, Jon Vezner. Mattea is also a two-time Grammy Award winner: in 1990 for "Where've You Been", and in 1993 for her Christmas album "Good News".