During the NYC stop of the I Am Finally Famous World Tour, Big Sean brought out Kanye West as they performed "Marvin Gaye & Chardonnay," the current #1 song in the country. Watch that below, hit the jump to watch him perform a new track, "All I Know."
Big Sean Performs "All I Know" & "Keep It G"
Props to XXL & HipHopVIP
Previously: New Music: Big Sean - Dance (A$$) (Remix) ft. Nicki Minaj