Last season on The Voice, it was a whole lot of he said, she said drama for Adam Levine and Christina Aguilera, but as the coaches come together to begin work on season 3, Levine tells MTV they're on much better terms. Indeed, in an Us Weekly exclusive pic taken last week in L.A., Aguilera and Levine happily bonded alongside host Carson Daly and fellow mentors Blake Sheltonand Cee-Lo Green. "We bickered a little bit ...