Kesha has formally replaced Mark Geragos, the controversial lawyer who sued Dr. Luke on her behalf in October 2014, was later sued by Dr. Luke for defamation, and more recently represented her through a pair of major legal setbacks. Earlier, Geragos had ceased to represent Kesha's mother, Pebe Sebert. On April 27, Nashville-based attorneys Alex Little, Susan Neal Dickerson, and Mandy Strickland Floyd filed to represent Kesha in New York, along with Geragos and Daniel Petrocelli, a big-name lawyer who previously won a civil suit against O.J. Simpson. As of May 2, Petrocelli's firm O'Melveny & Myers has taken over from Geragos's firm in representing Kesha in New York and California, online court records show.