It was all a joke!

Joaquin Phoenix, 40, said Monday night in "The Late Show With David Letterman" that he was engaged to a yoga instructor.

"I think she's the one and I proposed to her, and she said yes," he said.

See: Joaquin Phoenix Reveal He's Engaged to a Yoga Instructor

This morning on "Good Morning America," he said it was just him having fun.

"No. I think like my life’s so boring, and it seemed like something exciting to talk about, and I wanted the audience to like me," he said. "They really like people getting married."

He added, "I can get engaged again, if you like."