Ariana Grande’s Fellow ‘Voice’ Coaches GEEK OUT Over Her ‘The Voice’ coaches Blake Shelton, Kelly Clarkson and John Legend sat down with ‘TODAY’ and geeked out over new coach Ariana Grande. The 28-year-old singer makes her coaching debut when 'The Voice' returns to NBC on Sept. 20. Amazon.com Let's Face The Music And Dance in the Style of Nat King Cole BUY NOW