THE KNACK frontman DOUG FIEGER is recovering after undergoing successful brain surgery yesterday (03AUG06). According to his publicist, GUY MCCAIN, the 53-year-old MY SHARONA singer had two tumours removed during the operation at Cedars-Sinai Medical Center in Los Angeles. DR JOHN YU said the surgery was successful and Fieger was expected to have a full recovery. The Knack's upcoming concert tour has been postponed.