Kanye and Jay had too much fun roaming the city last night. They were spotted at Marc Jacob's after party which was held @ Greenwich Hotel, and the low-key club, Butter. Apparently they were at Marc Jacob's party on the dance floor having a great time while the DJ played all of their hits. It appears Marc Jacobs didn't only have the best & most talked about fashion show so far this fashion week, but he also wins for having the best after party. The list of celebrity guests to attend Marc Jacob's after party was crazy.