Rihanna and Chris Brown
Breezy opens up about working hard for Rihanna\'s forgiveness in his latest interview.

They went public with their controversial reunion on Christmas Day but Chris Brown has finally broken his silence over getting back with Rihanna.

The 23-year-old star opened up about rekindling his romance with the Diamonds hitmaker at Elton John's Aids Foundation Oscar's party.

Breezy told the Mirror that although RiRi had forgiven him he had had to work hard to win her back.

"Sometimes you row, you fight, with the one you love and things get said, stuff spirals," he said.

"But she loves me - what can I say? I'm forgiven but, yes, I worked hard for it."

Brown, who is still on probation for the 2009 attack on Rihanna, described that incident as the biggest mistake he had ever made.

"That night was the deepest regret of my life, the biggest mistake," he insisted. "I've learned a lot since that night and I've grown up. I was very young and I took a lot of stuff, fame, for granted.

"I didn't understand it. The support from those who do know me and the fans, who are incredible, got me through," he added.

Brown also addressed Seth MacFarlane's joke at the Oscars in which he compared violent movie Django Unchained to "date night for Rihanna and Chris Brown". Brown insisted he was no longer fazed by the constant criticism.

"People attack me and criticise me, it happens all the time," he said. "But they don't know me, and they don't know us. It doesn't bother me any more."

RiRi recently said that Brown was "not the monster everyone thinks".

"He's a good person. He has a fantastic heart," she said.

But the songstress, who recently turned 25, also warned that he "doesn't have that luxury of f*****g up again."

"If he gives me that again, here's what I give him: nothing. I just walk away," she said.