Demi Lovato Nails Her Cover of Adele's 'Hello'

Demi Lovato started a singalong during her performance of Adele's "Hello" at Seattle's Fall Ball on Saturday.

Donning a matching leather skirt and crop top, the 23-year-old pop star went into her rendition of the recording-breaking ballad, to the delight of her fans.

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Empire actress and singer, Becky G., also performed at the Fall Ball and tweeted how impressed she was with Lovato's concert. "@ddlovato never fails to blow my mind. Wtf just happened. Wow," she wrote. "One of my favorite live vocalist to see in concert."

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Lovato tweeted back: "@iambeckyg you are so sweet!!!! Thank you girl. Wish I could've given you a big hug last night!! ???".

During a recent interview with Rolling Stone magazine, Adele revealed which pop star she'd most want in her squad. Is Lovato on that list? Check out the video to find out.