EastWest/Elektra recording artist Lil' Mo was injured Friday night when leaving a radio concert sponsored by San Francisco radio station KMEL at the Warfield Theater. The singer/songwriter was exiting

EastWest/Elektra recording artist Lil' Mo was injured Friday night when leaving a radio concert sponsored by San Francisco radio station KMEL at the Warfield Theater. The singer/songwriter was exiting a backstage area lined with fans when an unidentified man struck her in the head with a bottle. She was rushed to California Pacific Hospital where she received more than 20 stitches for the head wound.

Elektra and Lil' Mo's management have cancelled all of the singer's public appearances through June 29. "Elektra deplores this senseless act of violence," says Elektra executive GM Greg Thompson in a prepared statement. "We hope the perpetrator is caught and prosecuted to the fullest extent of the law. For this to happen on the eve of the most exciting week of Mo's career makes us doubly sad."

Lil' Mo was promoting her new album, "Based on a True Story," due out today (June 26). Her current single, "Superwoman Part II," which features rap newcomer Fabolous, is currently No. 4 on Billboard's Hot R&B/Hip-Hop Singles & Tracks chart.