Keup works primarily from his private studio White Star Sound. His production projects have reached as high as #1 overall on iTunes and #2 on Billboard. He has produced releases for Mercury Records, Warner Bros., Atlantic Records etc., and nearly a hundred independent projects. His development projects have gone on to sign with Epic, Mercury, Warner Bros., Or Music, Cherry Lane, Warner Chappel and many others.

As a writer and collaborator he has worked across a variety of genres with artists on Warner Bros., Universal, Elektra, Atlantic, Mercury, Nettwerk, Chrysalis, Virgin etc. His songs have appeared in numerous TV shows and films (Grey's Anatomy, The O.C., American Idol, Jimmy Fallon, The Heartbreak Kid, One Tree Hill, Vampire Diaries, etc.) and have sold several million copies worldwide.