VIDEO: Will Smith Treats LATE SHOW Audience to Impromptu Performance of 'Summertime'

During the commercial break of last night's LATE SHOW, Jon Batiste and Stay Human played Will Smith's hit "Summertime" and he couldn't resist joining in. Check out the impromptu performance below and watch the 'Suicide Squad' star and Stephen stare up at the night sky and ponder some of life's deepest questions, like "Do you ever wonder if we're all inside of some dog's dream?"

THE LATE SHOW WITH Stephen Colbert premiered on Tuesday, Sept. 8 on CBS.The show is broadcast from the historic Ed Sullivan Theater in New York City.

A multi-talented and respected host, writer, producer, satirist and comedian, Colbert is well-known for his previous late night show, "The Colbert Report," which concluded on Friday, Dec. 18, 2014. The program received wide-spread critical acclaim and earned two Peabody Awards and 29 Emmy Award nominations, including two Emmy wins for Outstanding Variety Series (2013, 2014) and four Emmy wins for Outstanding Writing for a Variety, Music or Comedy Program (2008, 2010, 2013, 2014). Prior to that, Colbert spent eight years as a correspondent on Comedy Central's "The Daily Show" as an on-air personality and writer of news satire for the Emmy and Peabody Award-winning series.