I think Andrew Winistorfer was on to something when he noted that the previous video from the Roots Grammy's jam sounded circa Things Fall Apart because footage of Mos Def performing "Double Trouble" with the Philly crew just hit the web. The clip might get a little blurry at times but the sound is fantastic. I particularly love how ?uest and the band are playing "Nautilus" for half of the track. And any chance to watch Mos and Black Thought, two of the best MCs in the game, performing is more than worth it. Here's hoping Mos makes an appearance on Black Thought's Dangerous Thoughts LP and the forthcoming Roots record How I Got Over.