Jay-Z may have won over the hip-hop community ages ago, but the verdict is still out with the indie rock crowd. We here at the BoomBox are still trying to wrap our heads around why Jigga man would feel the need to prove himself to the indie heads across the pond, but we know the hip-hop mogul is always up for a challenge. Jay took a soft stab at Oasis' Noel Gallagher -- who made a stink earlier this month when he said it was "wrong" to have a hip-hop act headline the rock festival -- by covering the band's hit 'Wonderwall' before launching into his own Grammy-winning track '99 Problems.'