Beck and his band played a coffee shop/art gallery after their main show, somewhat unannounced, and for free.
MGMT joined the band to play their hit, Electric Feel.
Awesome article about the concert, including some great pictures, at vanityfair.com
Beck mentioned this show in his Irrelevant Topics conversation with Tom Waits:
We did this thing a couple years back, we were on a tour in the South. After the show we'd find a bar and we'd play there with little practice amps. Maybe the bar might have a PA with two little speakers. Usually we were singing through a guitar amp. I remember one time we were in El Paso. We had the day off and we were just going through town, and we found a coffee house. They didn't have any equipment. We just had a couple of those little 15-watt practice amps. I think my guitar player found a dorm or something down the street and started knocking on the doors and people lent us the equipment. You know, when we got in there and started playing, probably 100 people crammed into this café that didn't even have a stage; you couldn't hear anything. So the performance had to rely on whatever kind of feeling you could put out.
It seems it was late, everyone was tired after the real show, so this setlist might be pretty complete.