Billy Coulter Band – Friday – Rockville Town Square
Billed as a roots rock and power pop Americana band, Bill Coulter Band performs at the Rockville outdoor summer concert series. 6-9 p.m. Free. 200 E. Middle Lane, Rockville.
Boardwalk Brothers – Friday through Sunday – Gaithersburg Arts Barn
Four-part harmony vocal group presents hits by The Temptations, Frankie Valli and the Four Season and others. 8 p.m. Friday and Saturday; 2 p.m. Sunday. $12-$22. Information online. 311 Kent Square Road, Gaithersburg.
Heritage Days Weekend – Saturday and Sunday – Various venues
Activities and events at more than three dozen Montgomery County parks, historic sites, farms and galleries. Noon to 4 p.m. Free. Full list of sites and events online.
Mama’s Black Sheep – Saturday – BlackRock Center for the Arts
BlackRock’s free summer concert features singer-songwriters Ashland Miller and Laura Cerulli with original music in country, rock, pop, soul and blues. 7-9:30 p.m. Free. Information online. 2901 Town Commons Drive, Germantown.
L’homme Cirque: The One-Man Circus – Friday, Saturday and Sunday – Strathmore, North Bethesda
“Lord of the Wire” David Dimitri, a high-wire dancer and Cirque du Soleil veteran, performs a one-man circus that includes a human cannonball launch, poetry and accordion serenades. Showtimes vary, with additional dates through July 7. $20-$30 in advance. Information online. Strathmore campus, 5301 Tuckerman Lane, North Bethesda.
