London, Feb 11: Popstar Rihanna has gone into hiding to recover from an alleged attack by Chris Brown.

The `Umbrella' hitmaker, who was reportedly punched on the face by Brown after an argument, is left with a swollen face, a split lip and bite marks on her hands.

The singer, who had planned to throw a lavish birthday party on the 20th of February, has also cancelled her celebration plans, reports the Sun.

Brown, 19, fled the scene, it was claimed, but voluntarily went to cops 13 hours later.

He has been booked on suspicion of making criminal threats and given 50,000 dollars bail.

Both he and Rihanna were due to perform at the Grammy Awards but pulled out following the incident.

In 2007, while appearing on the Tyra Banks Show, Brown had said that he was against domestic abuse. He said: "Some people, their families go through domestic violence and stuff like that. I don''t want to mention the person''s name but there was somebody who hurt my mom. Me having to deal with that from the age of seven all the way through to 13, me seeing that and being visually abused by it - it affected me." (ANI)