Leftapalooza: 10:30 a.m., The Garden at Left Hand Brewing, 1245 Boston Ave., Longmont. Leftapalooza goers will enjoy a full day’s worth of great music and brews as the best of the best tribute bands go mic-to-mic for the top title — a $1,000 cash prize and the right to return as the 2026 Leftapalooza headliner. Fans can vote for their favorite performance at the event. $22, lefthandbrewing.com.

Pride in the Parks: 8 a.m., near Boulder, 5201 St. Vrain Road, Longmont. This program is for anyone who enjoys looking at birds or simply wants something fun and different to do outdoors. Those who identify as LGBTQIA+, allies, families or anyone who wants to enjoy an inclusive outdoor experience are welcome. This will be a slow hike covering 1.5 miles. Location provided upon registration. Free, boco.org.

BackStory’s Fairytale Theatre: 10:30 a.m., Erie Community Library, 400 Powers St., Erie. Find out if a bad night’s sleep could be key to happily ever after in this performance by the fantastical BackStory Fairytale Theatre Troupe in an interactive show. Fun for the entire family and perfect for preschoolers-first graders. Free, highplains.libcal.com.

Tumbledown Shack at Bootstrap Brewing: 6 p.m., Bootstrap Brewing Company, 142 Pratt St., Longmont. Tumbledown Shack is a five-piece band recreating the sounds of the Grateful Dead in northern Colorado. Established in 2019, the band continues to grow its catalog of music while cultivating a unique flavor of their own. bootstrapbrewing.com.

SUP Yoga: 8:30 a.m. Sunday, Union Reservoir — Rocky Mountain Paddleboard, 471 CR 26, Longmont. All levels welcome. On-land instruction will be given before launch with safety tips and basic paddle techniques. Float and flow into a new awareness for an hour. $45, 903-520-7657, rockymtnpaddleboard.com.

John Martin author talk: 3 p.m. Sunday, Inkberry Books, 7960 Niwot Road, Niwot. John Martin will read from his book “Down the Horizon Line: the Working Adventures of Hayes Perkins 1878-1964.” Hayes Perkins left home at 15 to travel the world for the next 60 years, a lone working-class adventurer, maintaining no fixed address and always paying passage with the skill of his own hands. Throughout his travels, Hayes kept a diary that eventually ran to 2,000-pages. “Down the Horizon Line: the Working Adventures of Hayes Perkins 1878-1964” recounts Hayes’ world travels with special emphasis on his seven extended working adventures in Africa. Free, 720-412-1548, inkberrybooks.com.

Adult Drag Bingo: 6 p.m. Sunday, Left Hand Brewing, 1265 Boston Ave., Longmont. Get ready to sashay and slay at Adult Drag Bingo with the fabulous Miss Jessica L’Whor. Leave inhibitions at the door, and let Miss Jessica dazzle with her wit and charm as participants compete for fabulous prizes. Free.

Short Film Night: 6 p.m. Monday, Erie Community Library, 400 Powers St., Erie. Come watch three short movies — one documentary, one live action and one animated film each session. One of the films will be an Academy Award winner, one will be an Academy Award nominee and one will be neither. Free, highplains.libcal.com.

Life drawing: 6 p.m. Monday, Firehouse Art Center, 667 Fourth Ave., Longmont. Join fellow local artists to draw short poses of models who are facilitated by Art of Modeling. Bring supplies from home, but newsprint and vine charcoal will be available. Bring an easel if desired. hisawyer.com.

Your Stage: 6 p.m. Monday, Bootstrap Brewing Company, 142 Pratt St., Longmont. Every Monday, enjoy six specially curated musical acts. Local musicians are here to rock the house and soothe listeners’ ears with 30 minute performances. Come in and jam out with some of the best tunes the Front Range has to offer. bootstrapbrewing.com.

“Inside Out 2” film screening: 10 a.m. Tuesday, Longmont Museum, 400 Quail Road, Longmont. From nostalgic classics to recent blockbusters, enjoy a Tuesday morning movie with little ones with popcorn this summer. Disney and Pixar’s “Inside Out 2” returns to the mind of newly-minted teenager Riley just as headquarters is undergoing a sudden demolition to make room for something entirely unexpected — new Emotions. Joy, Sadness, Anger, Fear and Disgust, who’ve long been running a successful operation, aren’t sure how to feel when Anxiety shows up. And it looks like she’s not alone. Buy tickets ahead; these movies sell out. $3-$6, 303-651-8374, longmontcolorado.gov.

English Conversation Hour: 10 a.m. Tuesday, Carbon Valley Regional Library, 7 Park Ave., Firestone. Come and be a part of English Conversation Hour at the Carbon Valley Regional Library. Each week, a native speaker will facilitate an activity to prompt and encourage conversation. All skill levels are welcome. Free, highplains.libcal.com.

Middle School Book Club: 4 p.m. Tuesday, Carbon Valley Regional Library, 7 Park Ave., Firestone. Join each month to discuss a new YA or middle grade title. This month’s book is “The Blackthorn Key,” by Kevin Sands. Snacks will be served. For grades 6, 7 and 8. Registration required. Free, highplains.libcal.com.

Paws to Read: 6 p.m. Tuesday, Carbon Valley Regional Library, 7 Park Ave., Firestone. Paws to Read is for kids who want to practice reading at their own pace with a non-judgmental furry friend. Free, highplains.libcal.com.

Editor’s note: Availability and scheduling of events may be subject to change.