Chris Brown and Rhianna gave revellers at a pre-Grammy party on Friday night a taste of what was to come - by screaming obscenities at each other, according to US reports.
An eyewitness tells Life & Style magazine that Brown and his girlfriend were caught fighting 24 hours before the R&B star's alleged assault on his girlfriend early on Sunday.
The party guest says: "I saw Chris Brown and Rihanna fighting at the Verizon party on Friday night. They were in this room and they were just screaming at each other, totally cursing each other out.
"They were right in each other's face. It was scary. They were surrounded by all these execs and they were all just ignoring it, as if it was something they saw every day. It was so shocking."
But the lovebirds seemed happy when they were spotted dining at fast food diner Johnny Rocket's on Melrose Avenue last Tuesday.
One fellow diner said: "They just looked like a very happy couple in love. She (Rihanna) was laughing at everything he (Brown) said."
Brown has been charged with felony battery following a fight with his girlfriend early on Sunday.