The worst-kept secret on the planet is officially out of the bag -- Chris Brown has confirmed that he and Rihanna are officially a couple again.

Breezy tells the New York Post, “We are really happy. We are back together. She is the most beautiful girl in the world."

Brown also told the U.K.'s Mirror that he considers beating Rihanna the biggest mistake he's ever made. “That night was the deepest regret of my life. But she loves me –- what can I say? I’m forgiven…but, yes, I worked hard for it.”