Instagram/Jimmy Kimmel & Stephen Co TV Stephen Colbert hosts his final Late Show May 21, 2026; Jimmy Kimmel airs a rerun out of respect, leaving Fallon as the only live rival that night. May 12, 2026 AceShowbiz - Stephen Colbert is set to host the final episode of The Late Show on Thursday, May 21, 2026, and in a show of respect, Jimmy Kimmel Live! will air a rerun instead of a new episode that night. Jimmy Kimmel confirmed this plan during an appearance on Late Nighter, though representatives for his show have not commented further. This means that while The Late Show airs at 11:30 p.m.