Gwen Stefani Joins Blake Shelton on Stage at His L.A. Concert! (Video)

Gwen Stefani and Blake Shelton are just the cutest couple! The 47-year-old pop singer surprised fans by joining her country singer boyfriend on stage during his concert on Friday night (February 17) at the Forum in Los Angeles. PHOTOS: Check out the latest pics of Gwen Stefani While she was on stage, the duo performed