Stapled scrotums - and Sum 41...

JOHNNY KNOXVILLE and his ‘JACKASS’ co-stars are to host MTV’s WINTERJAM 2003.

>The free rock festival takes place in Davos, Switzerland on March 14.

The event will feature live performances by US hip-hop band Crazy Town, along with Sum 41 and Guano Apes.

Winter Jam will be shown on MTV UK on Friday April 4.