TALK SHOWS

“Conan” (11 p.m. 12:30 a.m., TBS): DIY Conan: an entirely fan-made episode of Conan.*

“The Tonight Show Starring Jimmy Fallon” (11:34 p.m., NBC): Singer-songwriter Gwen Stefani; record producers Swizz Beatz and Timbaland; Bebe Rexha and Doja Cat perform.*

“The Late Show With Stephen Colbert” (11:35 p.m., CBS): Journalist Joy Reid; actor Yahya Abdul-Mateen II.*