Demi Lovato Looks Amazing & 'Confident' at Grammys 2017

Demi Lovato arrives at the 59th annual Grammy Awards at the Staples Center on Sunday Feb. 12 2017 in Los Angeles

That's right! Saturday Night Fever came out FOUR DECADES AGO and it got an appropriately funky tribute at the Grammys with an all-star Bee Gees medley!

Performers Andra Day, Celine Dion, DNCE, Nick Jonas, Tori Kelly, John Legend, Little Big Town, Demi Lovato, Pentatonix and Keith Urban will pay tribute to five-time GRAMMY winners and Recording Academy Lifetime Achievement Award recipients the Bee Gees. The audience was receptive to the Kelly, Day, Lovato and Little Big Town mashup as they received a standing ovation.

The Bee Gees may be best known for the soundtrack to Saturday Night Fever, but their mark on the global scene spans so much greater than that one (albeit very best-selling) soundtrack.

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LBT also appeared earlier in the evening, to introduce Katy Perry's performance by singing a short clip of Perry's song "Teenage Dream".

On Feb. 14, Little Big Town will return to the stage to perform at the "Stayin' Alive: A Grammy Salute to the Music of the Bee Gees", which will air later this year.

Demi Lovato looks so incredible on the red carpet at the 2017 Grammy Awards held at the Staples Center on Sunday (February 12) in Los Angeles.