It's always time to celebrate when Brigid Murphy, the auteur behind Milly's Orchard Show, takes her act to the stage, and things ought to be even more festive as she presents "Milly's All-Kid Holiday Spectacular" at the Old Town School of Folk Music, 4544 N. Lincoln Ave., for two shows at 3:30 and 5:30 p.m. Sunday, Dec. 13. Participants include the Blisters featuring Spencer Tweedy, Mini Midnight Circus, the Chicken Fat Klezmer Band, Holy Cross/IHM Marimba Ensemble and Choir, Wilson Brehmer, Hula Hooping by Annie Warnick, Jane Baxter Miller, Juggler Bruce Bailey, Berger Park Bucket Drummers, Katie Kot, Kai Juhlin, Jake Smith and Aylin Bayramoglu and more. Tickets are $20 ($18 for Old Town members) through www.oldtownschool.org or (773) 728-6000.

As holiday charity events go, it's hard to think of one that's more worthy--or more fun--than the annual "Second City That Never Sleeps: Letters to Santa" extravaganza. Starting at 6 p.m. Tuesday, Dec. 15, and running through 6 p.m. Wednesday, Dec. 16, this year's all-ages 24-hour entertainment bonanza features musical guests Jeff Tweedy (7 p.m. Tuesday), Robbie Fulks (10 p.m.), Upright Citizen's Brigade's Matt Walsh and Horatio Sanz (midnight), the Flashmob Marching Band ( 3 a.m. Wednesday), Bonnie Prince Billy (6 a.m.), BabyCo (7:30), Nina Nastasia (noon), the Mountain Goats (2 p.m.) and the Blisters (4:30), among many others. Tickets are $15, available only at the door, but good for the entire 24 hours as long as seats are available. More info can be found by searching "The Second City That Never Sleeps: Letters to Santa" on Facebook.