The Hopkinton Center for the Arts continues its fifth annual Summer Concert Series on Saturday, June 22, from 6:30-8:30 p.m. with the C-Jammers.The C-Jammers play blues, swing and rock and roll, backed with a high-powered horn section. The concert will be outdoors, weather permitting, or moved indoors if necessary. Tickets are pay what you can. For more information, visit hopartscenter.org/events.