The 3-night-premiere of "The Voice" kicks off on Monday – and what better way to welcome back the reality series than seeing our favorite coaches, Christina Aguilera, Blake Shelton, Adam Levine and Cee Lo Green reunite on stage!

Performing the classic tune "Start Me Up" by the Rolling Stones, Adam opens up the performance on guitar, Blake and Christina come in with a duet, and Cee-Lo looks almost heavenly as he joins the group for the chorus.

The NBC series has some stiff competition this season since fellow pop-princess, Britney Spears, will be taking to the judges' panel on FOX's "The X Factor" --- premiering this Wednesday, the same night “The Voice” is airing its second episode.

Check out their opening performance below!

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