Sometimes an artist is so very special that we have to call them “special guests.” What makes these artists special? We could count the ways all day long. But let’s just leave it at this: Sometimes we can’t announce an artist because of previous commitments or other shows they might be playing this summer. And that’s why they’re special, *unannounced *guests.

This summer’s tenth annual UMS will have plenty of exciting special guests you’ll recognize, but you won’t see those names on this website — until The UMS actually starts! So keep checking back, and remember to follow us on Twitter here. And because you surely have your wristbands already, tell your friends and family to get their four-day wristbands now. They’re only $30 now — but they’re $40 at the door!