Injured Rihanna may need a plastic surgery

London, Feb 11: Superstar singer Rihanna cancelled her 21st birthday party and is hiding after her boyfriend singer Chris Brown attacked her.

According to thesun.co.uk, Rihanna may need plastic surgery. Police sources labelled the injuries as "horrific" after Brown hit her in Los Angeles Sunday. Rihanna`s injuries include a swollen face, bloody nose and split lip as well as bite marks on her forearm and hand. Brown ran away but 13 hours later went to the cops. IANS