Natalie Maines, Martie Maguire and Emily Strayer of The Chicks performed an a cappella rendition of “The Star-Spangled Banner” during the final night of the Democratic National Convention on Aug. 20. During the three-day convention, a number of cross-genre artists performed remotely, including Billie Eilish, John Legend and Leon Bridges. On July 17, The Chicks…… MORE