NBC’s New Year’s Eve 2020 telecast will feature performances by a handful of country crooners—Blake Shelton, Keith Urban and Brett Eldredge—as well as X Ambassadors, Julianne Hough, NE-YO, Leslie Odom Jr., Gwen Stefani and The Struts. The show, which will air live from Times Square in NYC, will be hosted by Carson Daly and Julianne…