Demi also performed "Cool For The Summer," "Really Don't Care," "Heart Attack," "Give Your Heart A Break," and "Neon Lights." Her bf Wilmer Valderrama and pal Nick Jonas can be seen at about 9:39 in the video below.
Wilmer, Nick and Joe Jonas were also on hand to sing along with Demi during "Really Don't Care," captured in this oh-too-funny Vine video. Love these guys!
And could you love this pic of Demi, Nick and Joe more? Demi shared the snap on Instagram, writing: "My boys forever.. 😊 They're f**king killing it. #Levels #Cakebytheocean #Confident." Uh, yeah. We'd say they're all killing it these days.
Nick also posted a pic on Instagram of an epic group hug with Demi, Wilmer, James Corden, Nick and Joe huddling up. We'd give anything to squeeze in there and feel all that love. #squadgoals.