Grammys 2015: Rihanna, Kanye West and Paul McCartney Perform "FourFiveSeconds"

Rihanna, Kanye West and Paul McCartney

Rihanna, in a dark pantsuit, belted her best on "FourFiveSeconds" with Kanye West and Paul McCartney, who also accompanied on acoustic guitar.

LL Cool J hosted the 57th annual awards.

Rihanna, Kanye West and Beatles icon Paul McCartney took the stage together at the 57th annual Grammy Awards on Sunday evening to perform "FourFiveSeconds."

The three musicians each wore black blazers and pants. McCartney strummed the guitar while Rihanna and West commanded the space by dancing across the stage. The "Diamonds" singer dazzled in a few of her own, pairing her suit with diamond rings and a short diamond necklace.

Kim Kardashian was shown dancing, clapping and singing along to the new single.

"FourFiveSeconds" is the first single from Rihanna's new album and was co-written by West and McCartney.

West received two Grammy nominations, including best rap/sung collaboration and best rap song, and Rihanna was a part of two nominations: Eminem's "Monster" for best rap/sung collaboration and John Hill's nomination for best producer, nonclassical. 

The Grammys were held Feb. 8 at the Staples Center in Los Angeles.

Dana Carvey was interviewed for The Hollywood Reporter's recent Saturday Night Live reunion issue and acted out an impersonation of John Lennon in heaven talking to McCartney about rapper and musician Kanye West. Watch the comical enactment below.