We've seen quite a few videos of Jay Electronica performing his game changing song, "Exhibit C," at various venues lately. Lets take it back to the first exhibit with this clip. BMUSE got footage of Jay performing "Exhibit A" with Mos Def backing him up at The Independent in San Francisco. Later on in the show, Mos did his verse from the "Exhibit A" remix, so BMUSE mashed the footage together for your viewing enjoyment. You can download the live audio here.