Chris Brown is still learning from his mistakes.

The 'Run It' singer gave a candid interview on US radio, where he spoke about his regret at assaulting former girlfriend Rihanna in February, and told how he is trying his best to make amends.

He said: "I'm human. If people feel a certain way, I'm not going to say they're wrong. But it's not right to judge somebody when people make mistakes all the time.

"I've learned from my mistakes and I'm learning from them. And I regret every moment, every second of it."

Chris, 20, also admitted he is still not over 'Disturbia' singer Rihanna, and still has strong feelings for her.

He added in an interview with New York radio station Hot 97: "We've been friends since I was like 15, we got serious when I was like 17.

"Feelings are feelings and they don't go away overnight, especially if you sit down and are like, 'Look, I'm going to really be in this relationship with you, whatever the case, past our busy schedules, past us being two of the biggest artists.' I really care about her."

He also promised his fans he won't make the same mistakes in his life.

Chris said: "I won't let you down anymore. That was one of the most embarrassing things for me, because of my image and who I was as a young role model to a lot of kids. It was hard for me."