In 2005, he formed a band with his then girlfriend Leah Felder called Big Dume.
[1][2][3] In 2012, Jenner and Felder formed indie pop group Brandon & Leah, signed to Ear Fetish music label.
[4][5] The group met popularity when their single, "Showstopper" was used as the theme song for Kourtney and Kim Take Miami on E!
[6][7] Initially Brandon and Leah were signed to Warner Bros. Records, but they soon opted to release their music on their own.
[8] Along with Tony Berg, they produced their debut EP, Cronies, which was released on April 9, 2013.