Maybe you know Paul Williams for hits he co-wrote for the Carpenters (“We’ve Only Just Begun,” “Rainy Days and Mondays”) and Three Dog Night (“An Old Fashioned Love Song”). Or for his performances in Brian De Palma’s Phantom of the Paradise and the Smokey and the Bandit movies. Or for his Oscar-winning song with Barbra Streisand, “Evergreen (Love Theme from A Star Is Born).” Or for the songs he wrote for Bugsy Malone and Ishtar. Or for his singing (and writing) on Daft Punk’s 2013 Grammy-winning album, Random Access Memories. Or for what may be his most beloved song of all, “Rainbow Connection” (plus the rest of The Muppet Movie soundtrack). Factor in the current stage adaptation of the 1977 Jim Henson TV special, Emmet Otter’s Jug-Band Christmas, and Williams has a lot to talk about—and he does so, delightfully.