’Tis the season for giving. So even the late-night talk shows were getting into the spirit on Wednesday, serving up bonus musical performances and other little treats. Start with Alanis Morissette, who unveiled her very Alanis-like single Reasons I Drink on The Tonight Show With Jimmy Fallon, and also donned a disguise to perform busker-style interpretations of Little Drummer Boy and You Oughta Know in a New York subway station with the host. A dolled-up Angel Olsen also did double duty on Jimmy Kimmel Live with performances of the twangy Summer and the tender Chance from her latest album — though it’s a shame she didn’t also rock out on public transit with that outfit (and what I presume was a wildly oversized wig). Meanwhile, over on The Late Show With Stephen Colbert, Pharrell Williams enlisted a choir, cranked up the AutoTune and sported some enigmatic threads (WWCD? What Would Confucius Do?) for his captivating number Letter to My Godfather. And finally, remember me telling you about Beck’s roundly entertaining version of Uneventful Days on Kimmel the other night? It’s finally online, so I included it below. Hey, the talk shows aren’t the only ones doing a little giving these days.