311, which blends rock, reggae, hip hop and funk, is making a stop in Bethlehem in June. The Decemberists also are slated to perform at the venue in late July.
Judy Collins, best known for her 1968 hit "Both Sides Now" and 1975's "Send in the Clowns," will perform at 7:30 p.m. July 20.
Fiesta on Hamilton will take over Hamilton Street from 9th Street to 11th Street 1 to 7 p.m. May 18, the Chamber announced.
O.A.R., which most recently played Musikfest in a co-headline show with Goo Goo Dolls in 2023, will perform at the event center at 8 a.m. Aug. 21.
The Black Keys, best known for its double-platinum hits "Lonely Boy" and "Gold on the Ceiling," will headline Musikfest's Steel Stage on Aug. 10.