The singer raised concerns over the likelihood of his performance after the violent incident last weekend, which left Brown sporting a bandaged hand (despite claims he had not thrown a punch during the fight with Ocean). Ocean tweeted after the incident: "Cut my finger now I can't play w two hands at the grammys."
In an official announcement from the Grammys organisers, Ocean is listed alongside a number of huge stars confirmed to perform on 10 February.
Other stars named on the bill are Justin Timberlake, Jack White, the Black Keys, Alicia Keys, Maroon 5, Rihanna, Mumford & Sons and Taylor Swift.
No love lost: his brawl with Chris Brown will not affect Ocean's Grammy appearance
The duo came to blows when a dispute over a parking space broke out in Hollywood, with friends of each artist clashing violently in the street.
A source told TMZ that as Brown attempted to leave the studio, but Ocean and his entourage blocked his exit with Ocean apparently saying: "This is my studio, this is my parking spot."
Brown reportedly came forward to shake Ocean's hand, but was attacked by one of the 'Lost' singer's crew members which sparked a mass brawl in which both singers attacked each other.
Below: the greatest feuds in music - Ocean vs Brown and many more