What do Eminem and George W. Bush have in common? They both like to flip off crowds at concerts! Not exactly, but that's what happened when a Bush impersonator joined the real Slim Shady during a live performance of 'Mosh.'

Eminem's "farewell tour" stop at New York's Madison Square Garden was recorded in 2005, prior to the Detroit rapper's surprising retirement announcement. Fellow hip-hoppers D12, Obie Trice and Stat Quo all joined Eminem onstage during the sold-out show.

Award-winning director Hamish Hamilton (Madonna, U2, Robbie Williams) captured Shady and his crew at their charismatic best for the rapper's upcoming DVD. Watch live performances from the critically-acclaimed concert on AOL Music in advance of the disc's release on November 13.