Walk the Line star Joaquin Phoenix, not exactly known for his tame television appearances, certainly didn’t disappoint Letterman viewers last night when he appeared on the popular late night chat show.

The acclaimed actor proceed to adopt questionable yoga poses on the floor of the studio before admitting that he’s engaged to be married, a big reveal that seemed to even shock host David Letterman.

The Her star decided to fill David in on a particular experience he had with his yoga instructor by lying on the floor and saying: “I don’t know if you can see this, but it’s a compromising and vulnerable position. My Julio Iglesias is up next to her goulash, and she’s thrusting, she’s pulling.”  Er, OK.

Clearly spurred on by the audience’s reaction to his anecdote, the actor goes on to say: “This is the crazy part of the story, we started dating. And I think she’s the one. I proposed to her and she said yes.”

Accepting congratulations from the clearly taken aback host, Joaquin looked very excited at the prospect of making this woman his wife.

Aw, we wish them both well!