International songstress Alicia Keys is “so happy” about Frank Ocean’s Grammy Award nominations.

The pair worked together on her single 'One Thing' from her fifth studio album 'Girl on Fire'.

Singer-songwriter Ocean swept the board at this week's Grammy nominations concert - being recognised in six categories at next year's awards.

Keys - who has won fourteen Grammys - gushed to MTV News: "I'm so happy! I'm gonna tell him today cause I was in these rehearsals all day so they kind of came out, what last night or something, so by the time today I figured out kind of everything that was going on.

She added: "I'm so excited for Frank. I think he's a really, really, really special artist for real. And I'm so glad that people are recognising that. I think this is going to be a really cool Grammy year."

The 55th Annual Grammy Awards will be held in Los Angeles on February 10.