Rihanna and Chris Brown appeared to be inseparable throughout the Grammy Awards. Chris was convicted for assault on Rihanna and sentenced to five years probation after he battered her on the way to the ceremony in 2009. The singers sat side-by-side in the front row at the Los Angeles music awards on Sunday.

Apparently Chris was extremely supportive of Rihanna throughout.'The only time Chris Brown stood up the entire show was during Rihanna's two performances [her ballad Stay, and during a tribute to Bob Marley]. Otherwise, he stayed seated,' an observer told Us Weekly magazine.Rihanna was an early winner at Sunday night's ceremony. She took the prize for best short form music video for her hit We Found Love.The couple then celebrated at a Grammys after-party together following the show.During the Zing Vodka Post Grammy Party hosted by Chris at Hollywood's Supperclub venue, an eyewitness saw Rihanna sitting in Chris' lap at a private table.Apparently while she was drinking cocktails and puffing on a cigarette, Chris danced happily to the music.Later on during the night the pair sat beside each other and whispered in each other's ears "getting very affectionate,' the magazine reports.

The pair did an impromptu duet to Rihanna's track Birthday Cake and then departed the party at around 2:30a.m.This year's Grammys marks the most public outing for the couple since their reconciliation.