57th Annual GRAMMY Awards (TV Show) on Feb 8, 2015

Country:: USA

City:: Los Angeles

Location:: Staples Center

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From paulmccartney.com, February 3, 2015:

Paul is confirmed to perform this Sunday 8th February at the GRAMMY Awards with Rihanna, who will deliver a world debut performance of her newly released single ‘FourFiveSeconds’. Fellow GRAMMY-winning collaborator Kanye West will also join them on stage.

I’m executive producer of Rihanna’s album, and I said I’d done a few songs with Paul McCartney and she couldn’t get past this record. She had to have it on her album… So now we are at the Grammys doing it.
Kanye West – interviewed during the Grammy Awards

From HollywoodLife, February 8, 2015:

With a whopping 46 Grammys between them, it’s no surprise that Kanye West, 37, Rihanna, 26, and Paul McCartney, 72, delivered THE performance of the night at the 57th annual Grammy Awards in Los Angeles on Feb. 8! Their live rendition of their new anthem “FourFiveSeconds” was so amazing! […]
Rihanna, Kanye and Paul totally rocked the Staples Center! The unstoppable trio’s voices blended together in a surprisingly beautiful way when they joined forces to perform their upbeat new song.
It was clear that Kanye was so excited to be on stage with the legendary Paul McCartney. Yeezy himself has declared that he doesn’t like to smile in pictures — or in life, really — but that definitely didn’t apply to this performance!
He looked like a kid in the candy story, smiling and having a really great time interacting with Paul and RiRi on stage. Their enthusiasm was infectious and the crowd went wild! We have to say that RiRi really carried the performance though. No surprise there!

The staging for the performance was stripped down and intimate, with a white background and a huge flood light on the performers, who were all dressed in black. The trio were also joined by legendary guitarist Nuno Bettencourt.
The talented artists got famous faces in the audience clapping and singing along, including Jay Z, Taylor Swift, and of course Kanye’s adoring wife, Kim Kardashian.
Kanye, Rihanna and Paul embraced at the end and it was such an amazing moment!