John Oliver’s not the only talk show host who can drop in on another show unexpectedly. Last night, the great David Letterman ...

David Letterman made a surprise cameo on The Tonight Show Starring Jimmy Fallon on Feb. 10, interrupting Fallon's monologue ...

TV legend David Letterman returned to his former stomping grounds at 30 Rockefeller Plaza Monday for a surprise appearance on ...

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

Fans of electric musical performances would have been wise to tune into Monday's "Tonight Show Starring Jimmy Fallon." The ...

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The Late Show with Stephen Colbert remains late-night TV's top-rated show. And with another eventful weekend, millions of ...

Fallon will do six performances of All In, Simon Rich's episodic tales of love that features an ever-evolving cast week after ...

In this week's Trending Up, the U.K.'s latest crossover star sees consumption rise following her U.S. late-night bow, while ...

Show" host Jimmy Fallon makes his Broadway debut in the show “All In: Comedy About Love” from former "Saturday Night Live" ...

Day, who ended his sixth season as the Buckeyes head coach with his first national championship win, was a guest on "The Tonight Show" on Monday night. Day spoke with Jimmy Fallon about Ohio State ...

The British host of “Last Week Tonight” said he wanted to be “the first to welcome America to its monarchy era.” ...