Chris Brown, Rihanna cozy up at the Grammys

Chris Brown and Rihanna were smiling and snuggling at the Grammys four years to the day that he sent her to the hospital after a violent assault.

The two walked last nights red carpet separately but once inside the Staples Center, they got cozy in the front row of the awards ceremony. Rihanna, wearing a red dress, was photographed leaning against Brown, who was dressed in angelic white.

By now we know that the controversial pair are back together, but thanks to a sparkler RiRi wore on her ring finger as she performed her song "Stay" onstage, theres rampant online speculation that shes engaged to the bad boy R&B singer.

Getty Images for NARAS

Chris Brown and Rihanna attend the 55th Annual Grammy Awards

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Rihanna sparked engagement speculation when she wore a ring on her wedding finger as she performed "Stay" onstage during the 55th Annual Grammy Awards.

CBS via The Hollywood Reporter

Chris Brown (bottom right) stayed in his seat as Frank Ocean walked to the stage to receive his Grammy

A fan tweeted: Grammy Buzz is that Rihanna was rockin' an engagement ring at the #2013Grammys...Did C.Breezy propose?

The controversy doesnt end there. Brown, who showed up to Sundays ceremony after crashing his Porsche into a wall the day before, seemed to continue his feud with Frank Ocean.