The last of TV's big five-nights-a-week late-night show is giving up 24 hours out ... are already on a four-days-per-week schedule. More to come… More from Variety ...

David Letterman made a surprise appearance on The Tonight Show, crashing Jimmy Fallon's monologue to tell a few jokes and ...

After O’Brien failed to pull in viewers, Leno was brought in for one more season before being replaced by Fallon in 2014. Fallon’s humor and musical skits helped transform The Tonight Show for ...

“No One Noticed,” so they set off in search of something to fill the space with a somber performance of the record on The Tonight Show Starring Jimmy Fallon. “Come on, don’t leave ...