whibleylogo230.jpgDeryck Whibley, Avril Lavigne's ex hubby, won't be hitting the stage anytime soon due to a back injury he sustained after being attacked in a Japanese bar.

Sum 41 has decided to pull out of the Vans Warped tour while their 30-year-old lead singer recovers.

The following statement was released on the band's website:

    "Knowing that they are unable to deliver their signature high energy show, Sum 41 made the tough decision that a break is needed while Deryck begins rehabilitation for the slipped disc. He is expected to make a full recovery with the necessary treatment and rest."


Whibley was attacked by three men in a bar after performing at the Summer Sonic rock festival in Japan. Sum 41 hopes to resume their European tour by the end of this month.

Lavigne, who's currently dating Brody Jenner, split from Whibley back in September 2009.