This season, Adam Levine had a different strategy when choosing a Voice mentor. In an interview with ET, Levine joked, "It was purely shallow. He's a beautiful man." The beautiful man Levine can't get enough of is none other than Joe Jonas, who in all seriousness, Levine said was "perfect" for the job. "He's very...you're very mellow, which is good, 'cause it kind of balances me out," the Maroon 5 frontman said. So far, Jonas couldn't be happier with his Voice experience. "It's been great! I think this is spoiling me, because everyone we've been able to work with is really talented and I'm very impressed with