Chris Brown on Rihanna assault: 'I felt like a monster'

WASHINGTON, April 19 (UPI) -- Chris Brown says he felt like a "monster" after physically assaulting former girlfriend Rihanna in 2009.

During a preview of the singer's upcoming documentary, Welcome To My Life, Brown, 26, mentioned his regret over the high-profile incident in an interview, saying he considered suicide after the fact.

"I went from being on top of the world, No. 1 songs, being kind of like America's sweetheart to being Public Enemy No. 1," the R&B singer said.

"I felt like a [expletive] monster. I was thinking about suicide, I wasn't sleeping, I barely ate," he continued. "If there was ever a doubt in your mind Chris Brown was done, he was finished...I wouldn't bet on it."

Brown pleaded guilty to domestic violence charges in 2009 after beating his then-girlfriend, singer Rihanna, ahead of that year's Grammy awards. He was initially sentenced to 1,400 hours of public service.

Brown tweeted a link to the first trailer to the upcoming documentary -- which has yet to have an announced release date -- Sunday. The official documentary is produced by Riveting Entertainment.