Doug Fieger, vocalist of influential power-pop outfit The Knack, passed away on Sunday at his home in Los Angeles. He was 57. Fieger had been battling cancer, and in 2006 underwent surgery to remove brain tumors.

Fieger co-wrote The Knack's massive hit, "My Sharona," which was #1 on Billboard's Top Pop Singles of 1979 year-end chart.

Our deepest condolences go out to Fieger's family, friends and fans.