The Maryland band will perform at the Northampton venue on September 1.
O.A.R. will perform on Thursday at the Calvin Theatre in Northampton.The O.A.R. concert scheduled for Thursday at the Calvin Theatre in Northampton has been postponed until Sept. 7 at 8 p.m.
The cancellation was prompted by a family medical emergency, according to the promoter.
All tickets will be honored for the new date.
Ticket buyers who cannot attend on the new date should contact the Northampton Box Office for refunds by June 1.
Formed in Rockville, Maryland, O.A.R. (Of a Revolution) is touring in support of their recent album "King."