VIDEO : Nick Jonas is Demi Lovato's Biggest Cheerleader at the 2017 Grammys

Don't get "Jealous" nominees, but Nick Jonas may be rooting a bit more for a certain singer this weekend. Before enjoying music's biggest night at the 2017 Grammys, Nick appeared on the red carpet rocking Balmain from head-to-toe. "I saw Demi yesterday and she's performing tonight as well," he shared on Live From the Red Carpet with Ryan Seacrest. The 24-year-old is set to participate in Stayin' Alive, a GRAMMY Salute to the Music of The Bee Gees.