Downtown Longmont summer concert -- Cat Jerky and Last Men on Earth and other events for today

Aug. 18—Today

Downtown Longmont summer concert — Cat Jerky and Last Men on Earth: Enjoy live music from Cat Jerky and Last Men on Earth, dancing in the street, food trucks and craft beverages. This event is a makeup for the rained-out June concert; 6 p.m. Friday, intersection of Fourth Ave. and Kimbark St., Longmont; free; downtownlongmont.com.

50 Shades of Blue at Bootstrap Brewing: 50 Shades of Blue is a trio of award winning, seasoned blues, R&B and funk musicians, featuring Christine Webb on bass and vocals, Jim "Doc" Seely on guitars and Dan "Mojo Man" Crecco on drums; 6 p.m. Friday, Bootstrap Brewing Company, 142 Pratt Street, Longmont; 303-652-4186, bootstrapbrewing.com.

Swamp Molly at Left Hand Brewing: Swamp Molly performs swampy, funky blues and rock 'n' roll; 5 p.m. Friday, Left Hand Brewing, 1265 Boston Ave., Longmont; free; lefthandbrewing.com.

Moth-a-Palooza: Acting as citizen scientists, attendees will be encouraged to document their observations of the moths. Moth-related activities will highlight the critical roles that they play in local ecosystems, and light snacks and beverages will be provided. Headlamps and flashlights are strongly encouraged; 8 p.m. Friday, Sunflower Farm, 11150 Prospect Road, Longmont; free; eventbrite.com.

Upcoming

Left Hand Brewing with Unauthorized Absence: Unauthorized Absence is a classic rock cover band that plays its own unique blend of music from the 60s, 70s, 80s, 90s and 2000s; 5 p.m. Saturday, Left Hand Brewing, 1265 Boston Ave., Longmont; free; lefthandbrewing.com.

Longmont Book Club: This in-person book club discusses mostly historical or contemporary fiction; 10:30 a.m. Saturday, Barbed Wire Books, 504 Main St., Longmont; free; bookclubs.com.

English Conversation Group: Practice English conversation with others in an informal, conversational setting; 10:30 a.m. Saturday, Longmont Public Library, 409 Fourth Ave., Longmont; free; longmontcolorado.gov.

Try-A-Tri Triathlon: The adult Try-a-Tri, for ages 16 and older, is a super sprint distance triathlon meant for first-timers, those getting back in racing shape and athletes looking to try something new; Saturday, Recreation Center, 310 Quail Road, Longmont; longmontcolorado.gov.