Sorum's representative told Us Weekly the couple's wedding was Saturday in Palm Springs.
The entertainment industry publication reported the guests included Steven Tyler, Juliette Lewis, John Varvatos, Jane Lynch, John Stamos, Dave Navarro and former Guns N' Roses bandmates Slash and Duff McKagan.
Sorum, 52, who wore a tuxedo designed by Varvatos, and Harper, who wore a dress designed by Monique Lhuillier, had been dating about nine years, Us said.
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