Fellow judge Kelly Clarkson realized that little fact right away, though it appears that Shelton, Stefani's partner since 2005, did not! Clarkson turned to Shelton and asked him, "You know this is Gwen, right?. This is Gwen Stefani's song." Shelton replied, "Are you serious right now?" before adding, "I know!"
Real smooth, Blake.
After LiLi finished her song, during which the rest of their judges turned their chairs around, they ribbed Shelton a little more for not realizing that was a Gwen Stefani song. New judge John Legend teased "What do you like about that song, Blake?" He replied, "I get Kelly in my ear going, 'That's Gwen's song.' I go, 'I know it's Gwen's song!'"
Sure you did, Blake. Sure you did.
Via Country Living