Stephen is best known as the original lead singer of Ratt. Besides Ratt, he has also fronted several short-lived bands, including Arcade, Vicious Delite, and Vertex. He has released several solo albums, and also re-recorded the best of Ratt and Mickey Ratt under the name Rat Attack. That band name was used because he didn't have the right to use the Ratt name. Stephen currently continues to work as a solo artist, with plans for a solo album in 2008. However, in 2007 he rejoined and continues to tour with Ratt.