SATURDAY: Pier Six Pavilion hosts Star Spangled Spectacular: Bicentennial of Our National Anthem, with performances from Kristen Chenoweth, Melissa Etheridge, Smokey Robinson, Kenny Rogers, Pentatonix, Train, and many more. The WTMD Studios in Towson host the Baltimore Soul Revue, with performances from Winfield Parker, Sheila Ross, and The Softones. Downtempo dance group Late Night Alumni lays down chill beats at Power Plant Live. San Francisco sludge duo Black Cobra plays the Metro Gallery with Lo-Pan, Foghound, Davidians, and Cavern. Finnish power-metal band Sonata Arctica plays Baltimore Soundstage with Delain and Xandria. Folky bands Trampled By Turtles, Iron And Wine, and Guster headline the Route 29 Revue, an all-day festival at Merriweather Post Pavilion. The Sidebar hosts Rough Trade, a new semi-monthly queer dance party, with DJ sets from C10, Ellen Degenerate, and Jana Hunter. The Legwarmers play the hits of the Reagan era at Rams Head Live.