An irrepressible orphan decides "the sun'll come out tomorrow" and saves the day, 5:30 p.m., BDT Stage, 5501 Arapahoe Road, Boulder; $40-$67; 303-449-6000, bdtstage.com.
LEGO Storytime — Stories and Lego building for ages 3 and up, sponsored by the Boulder Library Foundation, is planned; 4 p.m., George Reynolds Branch, 3595 Table Mesa Drive, Boulder; free; 303-441-3100, boulderlibrary.org.
New Year's Eve party with the Wallpaper House Band — Flatirons Terrace will host a New Year's Eve party, featuring a performance by the Wallpaper House Band. Toast to the New Year as you mingle with other guests. Drinks and appetizers will be served; 4 p.m., Flatirons Terrace, 930 28th St., Boulder; free; 303-939-0594.
Runners Roost fun run — Run 3-6 miles alongside the Flatirons and the roads of South Boulder. Try out the newest shoes from your favorite brands on the run and win gear in the post-run raffle. After the run, enjoy Avery Brewing beer and Under the Sun pizza; 6 p.m., Runners Roost Boulder, 629 South Broadway, Suite E, Boulder; free; runnersroost.com/run-club.
Geeks Who Drink Trivia — Geeks Who Drink trivia is planned. Bring a team or just yourself; 7 p.m., Twisted Pine Brewing Company, 3201 Walnut St., Boulder; free; twistedpinebrewing.com/calendar.
eTown Presents: Reed Foehl & Kid Reverie — In 2001 Reed Foehl began his solo career with the release of "Spark" which put him on the map in the publishing world, garnering placements in both film and television. His fourth solo album, "Lost In The West," was released in 2014, which led him to tour with Gregory Alan Isakov, Todd Snider and Anais Mitchell, to name a few; 7 p.m., Thursday, eTown, 1535 Spruce St., Boulder; $25-$35; 303-443-8696, etown.org/events/etown-presents-reed-foehl.
Paul Soderman & the BBC Reunion Band — Soderman is a favorite vocalist at Dannik's. The BBC Reunion Band may not be the same group for each show, but they will always be some of the finest musicians in the Front Range; 7:30 p.m., Thursday, Dannik's Gunbarrel Corner Bar, 6525 Gunpark Drive, Boulder; $5; 303-530-7423, facebook.com.
Holiday Craft Fair — The Avenues Crofton Park will hosts its Second Annual Holiday Craft Fair. Browse a wide selection of unique, unusual and handmade gifts perfect for everyone on the holiday shopping list; 10 a.m., Friday, The Avenues Crofton Park, 12431 King Court, Boulder; free; 720-328-9548.
An Irish Celebration of the Winter Solstice — The Christmas Revels returns with a show steeped in Irish music, dance and story-telling. Join as the hopes and dreams of families seeking a better life in America are shared, with jigs and reels, step dancing, and a chorus of adults and children; 7 p.m., Friday, Dairy Arts Center, 2590 Walnut St., Boulder; $20-$28; 720-593-1454, rockymountainrevels.org/tickets.html.
Tad Baierlein — Tad Baierlein is a singer-songwriter and guitarist whose influences inlcude Townes Van Zandt, top 40 country radio circa 1989, Gram Parsons, John Doe, Richard Thompson and Gillian Welch; 8 p.m., Friday, The Laughing Goat, 1709 Pearl St., Boulder; free.