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The Voice Season 1 Coaches' 1st-Ever Group Performance Is Beyond Electric

Blake Shelton, Christina Aguilera, Adam Levine, and CeeLo Green kicked the show off with an epic collab. 

By Jackie Manno

When The Voice burst onto the scene in 2011, OG Coaches Adam Levine, Christina Aguilera, Blake Shelton, and CeeLo Green joined forces for a rendition of Green's hit ''Crazy" (when he was in the duo known as Gnarls Barkley). 

How to Watch

Watch The Voice Mondays and Tuesdays at 8/7c on NBC and next day on Peacock. 

During their cover, Levine handled the introduction lyrics while the other Coaches hummed backup vocals. The crowd then went wild when Shelton started singing and Levine kicked in with the drums. Naturally, X-Tina riffed away while Shelton played his guitar with confidence. 

Listen to the captivating cover here

RELATED: Blake Shelton & Christina Aguilera Sound Badass Singing "Pour Some Sugar on Me"

What to know about ''Crazy'' by Gnarls Barkley 

Released in 2006 by Cee Lo Green and producer Danger Mouse as Gnarls Barkley, ''Crazy'' reached the number-two position on the Billboard U.S. Hot 100 chart. The song was critically acclaimed, winning a Grammy Award in 2007. 

In 2021, Rolling Stone ranked it 307 on its ''500 Greatest Songs of All Time" list. Ten years earlier, the outlet named it as the best song of the 2000s, describing the tune as ''the most glorious pop thrill of our time.''

''Crazy'' has also been covered by Prince, Nelly Furtado, Violent Femmes, Ray LaMontagne, Paris Hilton, Cat Power, The Raconteurs, Billy Idol, One Republic, The Neighbourhood, Kacey Musgraves, and more. 

RELATED: The Original Coaches on The Voice Joined Forces for a Poignant "Hallelujah" Cover

CeeLo Green, Adam Levine, Christina Aguilera, and Blake Shelton appear pose for a photo during the Season 5 finale of The Voice