17 Pics That Prove Gwen & Blake's Romance Is the Real Thing

Their cute couple photos say it all

THEY'RE MASTERS AT HARMONIZING

The stars performed their duet, "Go Ahead and Break My Heart," on The Voiceconfirming what everyone thought to be true: This pair shares as much chemistry onstage as they do offstage. "I love this song! This song's important to us and the fact that we wrote it together is so important to both of us," Shelton previously told PEOPLE.