Alicia Keys, 40, looks very youthful as she lights up the Today show

Ariana Grande, Jennifer Lopez, Ed Sheeran, Alicia Keys and More to Perform on 'The Voice' Season 21 Finale

Jennifer Lopez, Carrie Underwood, Ed Sheeran, Alicia Keys and More to Perform on 'The Voice' Season 21 Finale

Alicia Keys: Keys review – double album shows two faces