But it does not – repeat not – mean the end of The Jonas Brothers, Nick tells PEOPLE. "This is something that can definitely co-exist with the Jonas Brothers," he says of his new band.
Still, performing without his brothers will be strange, the 17-year-old singer-songwriter admits. "I've never really stood center stage before," he says. "It's going to be different but I'm looking forward to it."
When Nick goes on tour, he says, Kevin and Joe will be in the audience cheering for him. "My brothers are my biggest supporters. They have told me they're looking forward to coming to the shows. They want to sit in the audience and see it from that perspective."
Nick Jonas & The Administration includes three members of Prince's New Power Generation as well as John Fields, the Jonas Brothers' producer, on bass.
"With three of the four guys being part of the New Power Generation, the funk R & B rock style we were going for is definitely there," Nick says.
Fans can catch a glimpse of Nick Jonas & The Administration at the "Grammy Nominations Concert Live!" special airing Wednesday, Dec. 2 on CBS at 9 p.m. Tickets for the tour will go on sale Dec. 5; presales start Tuesday.