Jackass star Bam Margera is such a fan of the Swedish rockers he signed to his Filthy Note record label last year (06), he invited them to play at his Las Vegas bachelor party on Tuesday night (23JAN07). VAINS OF JENNA took to the stage with Margera's stunt pals STEVE-O and BRANDON NOVAK at the Joint at the Hard Rock Hotel for the party, which was attended by porn queen Jenna Jameson, skateboard star Bucky Lasek and members of the Jackass and VIVA LA BAM cast. Margera, who is set to wed fiancee MISSY ROTHSTEIN in Delaware, was supposed to introduce his new signing at the party, but was too drunk to stand. The TV stuntman and his girlfriend were supposed to exchange vows last October (06) and then again at Christmas (06). Neither ceremonies took place. When Margera and Rothstein do wed, it's reported that FIREBALL MINISTRY frontman JAMES ROTA will officiate after becoming an ordained minister for his pal's big day. Margera toured with Fireball Ministry in 2005, as part of his Viva La Bands festival, and the two became friends.