Nick Jonas

On his third solo album (he released his first as a preteen before The Jonas Brothers), Nick Jonas hits the final nail on his boy-band image. Here he jettisons bubbly pop-rock for sleek electro and contemplative R&B. The single "Jealous" features a sizzling midtempo pulse and Jonas unleashing his comely falsetto, while "Teacher" is roller-rink disco down to its bumpy bass and playful synths. On "Numb," he teams with rapper Angel Haze for a slinking slice of trap&B. Even "Avalanche," with its soaring chorus and cameo from fellow Disney grad Demi Lovato, is a reflective, grown-up ballad.