HOLLYWOOD, Calif. — Sum 41 has canceled its remaining Vans Warped Tour dates after frontman Deryck Whibley was attacked last Thursday at a bar in Japan.
Whibley, the ex-husband of Avril Lavigne, was assaulted by three unidentified assailants after the band arrived in town for the Summer Sonic Music Festival. The incident aggravated a previous disc injury Whibley suffered in 2007.





















