Blake Shelton and Christina Aguilera Duet on 'The Voice': Who Should He Sing With Next?

On NBC's "The Voice," judges Christina Aguilera and Blake Shelton took the stage to perform a track from Aguilera's new album called "Just a Fool," a song that no doubt benefits from the presence of Shelton's deeper harmonies.

In fact, Blake Shelton always shines when it's time to duet with a female artist. He's already collaborated with singers such as Martina McBride ("I'm Sorry"), Kelly Clarkson ("There's a New Kid in Town"), Reba McEntire ("Oklahoma Christmas") and wife Miranda Lambert, with whom he's recorded several tunes.

And, judging just by the positive feedback from those songs, we won't be surprised if Shelton lends his melodies to more of his contemporaries' upcoming albums.

We want to know what you think: Which female artist would you most like to see Shelton duet with next?