Vince Gill's four-disc set, These Days, has been certified gold for shipments of 500,000 copies. Each of the four discs counts toward the 500,000 mark. So far, the set has sold more than 101,000 copies since its release in October. "It feels great to have something I worked on so hard to be embraced like it has been," Gill said. He concludes his 2006 tour in Las Vegas on Dec. 7-9 and will announce 2007 tour dates soon.