49th Annual CMA Awards - ArrivalsNASHVILLE, TN – NOVEMBER 04: Singers Garth Brooks and Trisha Yearwood attend the 49th annual CMA Awards at the Bridgestone Arena on November 4, 2015 in Nashville, Tennessee. (Photo by Jon Kopaloff/FilmMagic) GARTH BROOKS celebrated a career milestone by showering a fan with gifts after she became the four millionth person to buy a ticket to one of his concerts. The country legend left the unidentified female teacher stunned when she showed up to his gig in Grand Rapids, Michigan on Thursday and invited her backstage to meet him and his wife, fellow singer Trisha Yearwood. However, the surprises didn’t stop there as Garth and