The Voice has several big personalities on its roster of celebrity mentors, but none more uncensored than rowdy country crooner and this year's ACM Awards co-host Blake Shelton, whose camaraderie with Adam Levine and feud with Christina Aguilera have aided the show's popularity. "Somebody asked me, 'What about you and Adam's bromance. Is there anything to it?'" Shelton told PEOPLE last year. "And I sputtered off, 'Yeah, I'm going to make out with him.' The next thing you read is, 'Blake wants to kiss Adam.' … But it's fun."