RELATED: See more pics of Rihanna
The singer told ABC's "Good Morning America" on Friday that after being hit and bitten by Brown, "There was no person when I looked at him."
She added: "He had no soul in his eyes. Just blank."
RELATED: See more pics of Chris Brown
Brown was arrested Feb. 8, hours after he was accused of beating Rihanna after the two argued over a text message he had gotten from another woman. He later pleaded guilty to felony assault.
Of that night, Rihanna says: "It was ugly."
During the beating, the singer says she had no idea how it would end: "That's all I kept thinking the whole time, 'When is it going to stop? When is it going to stop?'"