See Demi Lovato's Confident 'SNL' Performances

Singer also appears alongside Tracy Morgan in "Astronaut Jones" sketch

Demi Lovato served as musical guest for the much-anticipated Tracy Morgan-hosted episode of Saturday Night Live, and the singer conquered the Studio 8H stage with a pair of rousing, assured performances. Two days after Lovato released her new LP Confident, she managed to squeeze three album cuts into her two spots, first with a truncated version of her Max Martin-produced hit "Cool for the Summer" that segued into the brassy, uplifting "Confident" that was backed by a full band and horn section.

Lovato previously premiered her action-packed, Robert Rodriguez-directed video for "Confident," featuring the singer battling it out with actress Michelle Rodriguez. Later in the episode, Lovato returned for "Stone Cold," where she showcased her impressive vocal chops on the poignant piano-driven ballad. 

In addition to the musical performances, Lovato also appeared in a sketch where Morgan reprised his Astronaut Jones character, with the singer portraying the "proud ruler of the Martian people." Upon offering Morgan's spaceman sustenance and peace, the astronaut instead suggests to Lovato's Martian, "I say you take that butt out of that spacesuit and let me see it clap."