Adam Levine

Given that it pulled in some of the highest ratings the network has seen in recent years -- and that it was quickly renewed for a second season -- we already knew NBC was enamored with 'The Voice.' Now that the network has announced the premiere date for season two, we know just how much.

Nothing quite says "pressure" quite like the last night of competition on a nationally televised singing competition -- so it's only fitting that the four judges of NBC's 'The Voice' came together to duet on the Queen and David Bowie classic 'Under Pressure.' The quartet -- Adam Levine, Blake Shelton, Cee Lo Green, and Christina Aguilera -- took the stage for a loose version of the song,

Before they were judges on NBC's hit singing competition series 'The Voice,' Adam Levine and Christina Aguilera were chart-topping singers -- and they teamed up to return to their roots Tuesday night, with a performance of their collaborative new single, 'Moves Like Jagger.' Maroon 5 took the stage first, with Levine fronting the band for the first half of the uptempo song, before Aguilera -- wear