Stephen Bradley plays the trumpet, keyboard, and sings in the band No Doubt. When Phil Jordan left No Doubt in 1995 to go back to school, Bradley was brought on as a sub for one show at The Great American Music Hall in San Francisco.Eventually, Bradley became a fixture of the horn section alongside Gabrial McNair. 
Bradley has also working on various projects in television (American Idol, So You Think You Can Dance, Superstars of Dance, Bernie Mac) as well as working with a variety of recording artists (Flipsyde, Akon, No Doubt) 


In 2007, Bradley toured with fellow band member Gwen Stefani on her solo Sweet Escape Tour
He also toured playing trumpet and percussion for The Smashing Pumpkins on their 20th anniversary tour in 2008.
In 2014 Bradley started a musical project called Mr.Etienne,and began performing at various venues around the Los Angeles area.
In 2014 Bradley premiered his first music video entitled "Over and Out". In the summer of 2015 he released his first solo EP called Runaways which has an accompanying video titled "Feel the Music".
Bradley has also teamed up with David Elecciri from Steel Pulse.They have a reggae album which should be released in late 2015.