Well this is an unexpected development. Joaquin Phoenix visited David Letterman last night to promote Inherent Vice. The two started kicking back anecdotes and talking about back pain. As one does. Then Joaquin started talking about a bizarre yoga class experience where he was attempting the “harnessing the hog” position. Huh. Hatha yoga must have really changed since I was involved a handful of years ago. Is this a real yoga position? Joaquin attempts to replicate the position in the video for Dave, and it looks like a joke.

What wasn’t a joke? Joaquin dropped a bomb on Letterman. Dude says he’s engaged to his yoga instructor now. I’d suspect him of joking about that too, but Dave completely schooled Joaquin after that Andy Kaufman-esque appearance from way back. Joaquin knows better than to pull the rug out from Dave again. I guess Joaquin broke up with his 20-year-old DJ girlfriend, Allie Teilz. Now he’s found his lady for life:

“First we do these breathing exercises and I go, ‘I can do this’…and then she says we are going to get in the first position — the “harnessing of the hog,'” Phoenix recalled of first meeting his now-fiancée. “Before I can say, ‘Who is the hog?’ She grabs me — and it’s a compromising and vulnerable position — and she gets a strap and puts it [around me] and she’s thrusting [against] me and I go, ‘Oh, no! My back pain!’ And she goes, ‘No, that’s your emotional back pain … 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. If everything works out [Im getting married].”

[From The Late Show with David Letterman]

So who’s the lucky lady? Joaquin has not confirmed the identity of his yoga instructor, but he once dated a yogi named Aria Crescendo. This was way back in 2010 before DJ Allie. You can see Aria’s yoga poses on Facebook. She very closely resembles DJ Allie. Dude definitely has a type. Anyway, there is buzz that Joaquin is back with Aria, but it might not be true. He could have proposed to any random yoga instructor. God only knows.

Here’s Joaquin last week in Beverly Hills. Seriously, those socks.

UPDATE: Joaquin says he’s not engaged. He made up the story: “I think my life’s so boring, and it seemed like something exciting to talk about, and I wanted the audience to like me. They really like people getting married.” OH. Very funny, d-bag.

Photos courtesy of Aria Crescendo on Facebook, Fame/Flynet & WENN