The O.A.R. opening act is the group, singer, or performer opening for O.A.R.. There may be multiple O.A.R. opening acts, or just one supporting act for O.A.R.. It’s also possible the 2017 O.A.R. tour opening act could change from city to city, or O.A.R. special guests could get added, so make sure and check the most recent O.A.R. 2017 Tour Dates for more information.