Grammys 2015: Adam Levine and Gwen Stefani Team Up for Maroon 5's 'My Heart is Open'
 

Adam Levine showed up sans Maroon 5 to share the stage with Gwen Stefani on his group's ballad "My Heart is Open." The tune is from the band's fifth album, V, which dropped in August. Levine and Stefani haven't been on television together since last year when they both coached The Voice.

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