Seattle-based hip-hop duo Macklemore & Ryan Lewis and singer/songwriter Santigold will both perform free concerts at the 31st annual Burton U.S. Open Snowboarding Championships, taking place from Feb. 25 - March 2 at Vail Mountain. Macklemore & Ryan Lewis will kick-off the free concert series on March 1 following the U.S. Open slopestyle finals at Vail. Known for their electrifying live performances, Macklemore & Ryan Lewis' hit single "Thrift Shop" is currently No. 1 on the Billboard Hot 100 chart for the third straight week. On March 2, Santigold will take to the stage for a free show following the Burton U.S. Open halfpipe finals. With two critically acclaimed albums to her name, Santigold also created the song "Girls," which is the lead single for the album "Girls Soundtrack, Vol. 1: Music from the HBO Original Series."After the Santigold show, the good times continue with the official Burton U.S. Open closing party featuring DJs Skratch Bastid and Cosmo Baker. As one of Canada's most treasured DJs, Skratch Bastid is a turntable champion and crowd favorite recognized worldwide for his beloved remixes. And widely considered one of the top party DJs on the planet, Cosmo Baker is a master of everything from hip-hop to disco and funk to electronic music. All events are free and open to the public. For more information on the 2013 Burton US Open and a full list of competitors, follow #BurtonUSOpen and head to www.Burton.com/USO.