From 1987 to 1989 Sims was the bassist for the Christian rock band White Heart, which he left to become a studio musician and producer. During 1992-1993, he played bass on the Bruce Springsteen 1992–1993 World Tour. As a songwriter he co-wrote Eric Clapton's "Change the World", which won the Grammy Award for Song of the Year in 1997. Other songs of his have been recorded by Michael English, Bonnie Raitt, Susan Tedeschi, Garth Brooks, Cher, Blackstreet, Toni Braxton and BabyFace, among others. Sims has also worked with Michael Bolton, Amy Grant, Kelly Clarkson, Carman, CeCe Winans, Israel Houghton, Michael W. Smith, The Neville Brothers, Michelle Williams of Destiny's Child, Brian Courtney Wilson and others.
