CASSIDY VS HITMAN HOLLA EPIC RAP BATTLE. Watch the epic rap battle that was one of the most talked about matchups ever and broke view records while trending many times across the country. Also check out the viral faceoff between Cassidy and Hitman Holla that set the stage for this huge rivalry. RBE continues to release some of the best RAP BATTLES and Battle Rap Content within the hiphop culture.