Blake Shelton and Gwen Stefani Only Have Eyes For Each Other at the Billboard Music Awards

Gwen Stefani and Blake Shelton brought their supercute romance to the Billboard Music Awards in Las Vegas on Sunday night. The two showed off their obvious chemistry when they took the stage to perform their duet, "Go Ahead and Break My Heart." In addition to Gwen looking gorgeous in a floor-length gown and neutral makeup, she couldn't stop staring at Blake while they sang. For more of their sweet relationship, see the cutest things they've said about each other!