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Blake Shelton and Gwen Stefani sing 'Go Ahead and Break My Heart' duet on 'The Voice'

/ Source: TODAY

Blake Shelton was joined by girlfriend, team advisor and sometimes-fellow coach Gwen Stefan on "The Voice" Monday night. But this time, she wasn't there to help Team Blake go far in the competition.

Instead, Stefani and Shelton took the stage and showed everyone just how far they've come — personally and professionally — by performing a love song together.

The couple stared at each other as they belted out "Go Ahead and Break My Heart," a song they co-wrote — and one he's referred to as "brutally honest and straightforward," as the title suggests.

MORE: Gwen Stefani opens up about loving Blake Shelton, moving on from Gavin Rossdale

They ended the duet with a hug.

But that's just one embrace they shared with fans Monday.

Earlier in the day, Stefani posted a photo of the pair cuddled up close to tree that has their initials carved right into the trunk.

MORE: Gwen Stefani on why she said 'yes' when Blake Shelton 'popped the big question'

And just before show time, she shared yet another sweet shot.

Shelton's new album, "If I'm Honest," featuring "Go Ahead and Break My Heart," will be released May 20.

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