Blake Shelton is one proud hubby to Gwen Stefani! Earlier this week the newlyweds sang one of their first duets together as husband and wife and the crowd could not get enough of the happily married couple. On Tuesday, while performing at CMA Summer Jam at the Ascend Amphitheater in Nashville, Tennessee, the 45-year-old surprised fans by calling out to Stefani to come on stage during his performance to sing their song, “Happy Anywhere” together.