Commercial for the 1985 KRUSH GROOVE Christmas concert

This 30 second ad for the Madison Square Garden event to tie in with the hip-hop movie classic seems like a fantastic way to spend the post-holiday season, with the likes of Run DMC, Kurtis Blow, LL Cool J and Doug E. Fresh in attendence, but post-concert events turned into a debacle when two people ended up in critical condition and five others were stabbed.