President Barack Obama will visit CBS’ Late Show With David Letterman on Monday, Sept. 21, as part of a media blitz to promote his health care message to Americans.

Obama’s visit will make the first time a sitting president has ever visited the Late Show, CBS said in press release this afternoon. Obama has appeared on the late-night comedy five times in the past, mostly during his presidential campaign in September 2008.

The president will be the only guest on Monday’s Late Show.