Miranda Lambert played the second of two nights at Colorado's Red Rocks Amphitheater on Wednesday night, bringing the U.S. portion of the Highway Vagabond tour to a finish for the moment while she heads overseas. Fellow Texas singer-songwriters Wade Bowen and Randy Rogers were on the bill supporting her, and the trio reconvened during Lambert's set to perform a sterling cover of Merle Haggard's "Sing Me Back Home."