Producer sues Lady Gaga

Lady Gaga.

AAP

A SONGWRITER and music producer says in a New York City lawsuit pop star Lady Gaga squeezed him out of her lucrative career after he co-wrote some of her songs, came up with her stage name and helped get her record deal.

Rob Fusari filed a $US35 million ($A38 million) lawsuit Wednesday against the Grammy Award-winning singer. He says his protege and former girlfriend ditched him as her career soared.

Fusari's lawsuit says he has credits on such hits as Will Smith's Wild, Wild West and Destiny's Child's Bootylicious. It says a friend steered the piano-playing singer to him in March 2006, when she was known by her real name, Stefani Germanotta.

Lady Gaga spokesman Dave Tomberlin hasn't responded to an email sent Thursday seeking comment.