Concordia Haven retirement apartments, 148 Marwood Rd, Cabot, entrance 5, will host a free Summer Sock Hop concert by the Belairs at 4 p.m. on Sunday, Aug. 20.

The concert will run for two hours with a short intermission.

The Belaires specialize in doo-wop harmony and Motown hits from the 1950s and ‘60s.

An ice cream truck will be on-site selling novelty treats.

In the case of inclement weather, the concert will be held in the Haven I dining room at 112 Marwood Road, entrance 2.