Stereogum:

The Lonely Island had their first proper concerts last year, and the comedy trio are building on that momentum with their first-ever tour, which will take place after their already-announced Bonnaroo set in June. The dates will take them to some major East Coast cities and then out to the Midwest. Tickets for the tour go on sale 3/1 at 10AM local time.

I may need to check out that DC date in June.