Sum 41’s Deryck Whibley Attacked In Japan Travis Faulk 14 years ago According to their Twitter, Sum 41‘s Deryck Whibley was attacked by 3 people at a bar in Japan last night. Share this: Sum 41’s Deryck Whibley Leaves HospitalSum 41’s Deryck Whibley Will Be “back out on stage before you know it”Sum 41 Has Cancel Shows Due To Health Issues