The whole idea for this duet between Christina and her fellow The Voice
judge Blake Shelton came into being when Christina started a performance with a snatch of the Country star's "Hillbilly Bone
." "That. Just. Happened!!!!! @TheRealXtina I'm speechless," Shelton tweeted minutes after.
@blakeshelton Now we need to team up for a country duet Blake!! I'm down!! Let's go!" tweeted Aguilera in response.