The actor was promoting the mockumentary 'I'm Still Here' when he delivered one of the strangest interviews ever recorded for ...

Phoenix appeared on Letterman’s show in 2009 in character for his mockumentary I’m Still Here, complete with the shaggy beard ...

Joaquin Phoenix’s bizarre 2009 appearance on David Letterman, where he stayed in character from I’m Still Here, left many ...

“When I came on this show with Dave, I originally did the pre-interview in character and I realized that it was just a little ...

He appeared in character for his Casey Affleck-helmed mockumentary 'I'm Still Here', which saw Phoenix quitting acting to ...

Katy Perry brought her Lifetimes Tour to PHX Arena on July 12. It was a sci-fi fever dream with "Roar," "Firework," "I Kissed ...

The Walk the Line star returned to The Late Show for the first time since 2009, 15 years after attempting a stunt that left ...

Joaquin Phoenix says he regrets his infamous interview with David Letterman, in which he remained in character for the entire, awkward conversation.

Sixteen years after his previous 'Late Show' appearance, the 50-year-old actor is opening up on his 'uncomfortable' interview ...

Oscar winner appeared in character from ‘I’m Still Here’, leading many to believe he was having a mental breakdown ...

Joaquin Phoenix told Stephen Colbert on the July 15 episode of 'The Late Show' that his infamous 2009 interview with the show's former host David Letterman was 'just one of the worst nights of my life ...

Joaquin Phoenix says he regrets his infamous interview with David Letterman, in which he remained in character for the entire ...