Demi Lovato Performs 'Cool for the Summer,' 'Confident' & 'Stone Cold' on 'SNL': Watch

 Dana Edelson/NBC/NBCU Photo Bank via Getty Images
 Demi Lovato performs on "Saturday Night Live" on Oct. 17, 2015.

Demi Lovato’s SNL debut on Oct. 17 featured a live mash-up of singles “Cool for the Summer” and “Confident,” as well as a separate performance of Confident ballad “Stone Cold‘’ -- both powerful, in different ways.

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The musical guest’s “Cool for the Summer”/”Confident” mix was a fiery performance that showed off the singer’s attitude and self-assurance.

“Stone Cold” was stripped down musically – Lovato was backed by piano only – but her vocals were full of raw emotion.

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Watch Lovato’s SNL appearance in the clips below.