"The Voice" returns for Season 3 on NBC this September, marking its first time on the fall schedule. But with only a few months between the end of last season and the start of Season 3, will Adam Levine and Christina Aguilera -- who fought endlessly throughout Season 2, mainly over Levine's contestant, Tony Lucca -- be on good terms?In the first photo from "The Voice" Season 3 auditions in LA, exclusively at Us Weekly, Levine, Aguilera, fellow coaches Cee Lo Green and Blake Shelton and host Carson Daly seem to be all smiles.