SATURDAY: Anti-street-harrassment organization Hollaback! Baltimore holds a benefit at the Sidebar with Wet Brain, Friendbeast, Hive Bent, and more. R&B stars and Virginia nativesChris Brown and Trey Songz bring their co-headlining tour, Between The Sheets, to Royal Farms Arena. Washington, D.C.'s Karen Collins & The Backroads Band play old-fashioned honky-tonk country at The Cabaret at Germano's. Fiery Fiddles at the Creative Alliance at the Patterson features Ken & Brad Kolodner, Patrick McAvinue, Jim Eagan, and Daisy Castro. The Face Off Battle League presents a rap battle throwdown at the Atrium Event Center, with Troy Brown vs. Ammo Da Savage as the top-billed competition, as well as a featured performance from battle rap vet A-Class. Tryptophunk, a New Orleans supergroup featuring members of The Meters and Bonerama, plays the 8x10. Trailblazing metal bands Napalm Deathand Voivod co-headline Baltimore Soundstage. Washington, D.C. funk rock fusion band B Side Shuffle plays the Metro Gallery with The Northerners and Edjacated Phools. Rams Head Live presents Rock Your Bones with seven local bands, including Pale Discretion, Seventh Seal, and Cryptic Matter. Don't miss: Prolific Baltimore indie-rap vet Height Keech drops the "Height With Friends" moniker for the release of a new solo album, "Talk Singer," at the Windup Space with Gavin Riley Smoke Machine, Bookhouse, and special guests.