LC Kids presents a part story hour and part sing-a-long with author and musician Eric Litwin (Pete the Cat), who appears with his guitar, harmonicas, and the second in his “The Nuts” book series, “Sing and Dance in Your Polka Dot Pants.” Starring young Hazel Nut and her super-hip, disco-dancing grandma, the story — and Litwin’s performance of it — will bring delight to audiences young and old, though this event is particularly well suited to children ages three to six. David Rubenstein Atrium, Lincoln Center, Broadway btwn. W. 62nd & W. 63rd Sts. Jan. 16, 11 a.m. The program, which runs about 45 minutes, is free, but reserve your space at LCKids@LincolnCenter.org.