Demi Lovato Delivers Show-Stopping GRAMMYs Performance of 'Hello' During Lionel Richie Tribute

Just wow.

All hail Demi Lovato.

The 23-year-old singer was part of the star-studded Lionel Richie tribute at the GRAMMYs on Monday and she blew the doors off her cover of Richie's 1980s hit, "Hello."

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While John Legend, Meghan Trainor, Tyrese and Luke Bryan held their own, singing classics like "Easy" and "Brick House," it was Lovato who stole the show.

Rocking a cleavage-baring sharp white blazer, Lovato showed off her powerful pipes during the ballad that had Richie himself -- and the GRAMMYs audience -- absolutely floored.

You can even see the 66-year-old singer pumping his fists in approval while saying, "Yes!"

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Just wow.

The only thing more perfect would have been an Adele-Lionel Richie "Hello" mashup. Back in November, Lovato nailed her cover of Adele's blockbuster single and we can only imagine how epic that would have been.

Before the GRAMMY telecast kicked off, Lovato spoke to ET on the red carpet about her awards show debut.

"I'm just excited to be here," she told ET's Nancy O'Dell. "I've always wanted to make it here and I always wanted to wait [for] my first time until I was either performing or presenting. I'm here and I'm excited!"