Bruce Springsteen stunned Bob Seger fans in New York on Thursday night (01Dec11) when he stepped up to join the rock veteran for a stirring rendition of Old Time Rock & Roll.
Seger introduced The Boss to the Madison Square Garden stage by telling fans he had a "Christmas treat" for them.
Springsteen then stepped out to deafening applause and screams and hugged his old pal.
RollingStone.com reports it's the first time the longtime friends have performed together on the same stage since Seger joined Springsteen for a rendition of Thunder Road at the University of Michigan in 1980.