David Letterman saluted by stars on final Late Show
Four US presidents have joined stars including Steve Martin, Tina Fey, Jerry Seinfeld and Foo Fighters to pay tribute to TV host David Letterman on his final late night talk show.
Letterman has bowed out after 33 years and 6,028 late-night broadcasts.
The 68-year-old began his late-night career on NBC in 1982, before moving to CBS's Late Show in 1993.
His final broadcast began with pre-recorded clips of former US presidents George H and George W Bush and Bill Clinton echoing fellow ex-president Gerald Ford's post-Watergate remark that "our long national nightmare is over".