The Split This Rock group is hosting D.C. Youth Slam Team Grand Slam Finals at the Arena Stage Mead Theater, 1101 6th Street S.W., on March 18. The event is scheduled to start at 7 p.m. The finals will showcase eight finalists who will be competing for a chance to appear in the Brave New Voices slam competition. Tickets cost $15, in advance, and $20 the day of the show.