World Finals of the B-Boy Championships, hosted by Crazy Legs and Afrika Islam, with B-boys (the 'B' stands for break, or sometimes boogie or Bronx, depending on who you ask) and poppers from around the world and performances from streetdance crews including Robot Boys and Danji Juniors. Competitive B-boying is a game of showmanship and one-upmanship, on a global scale. This 16-year-old contest is a big one, holding qualifying rounds across five continents – and this weekend, some of the world's best movers will be battling for dancefloor supremacy. The dancers are eliminated through one-on-one battles. Flashy feats like headspins always get the crowd whooping, but it's also a question of style, power, originality and charisma. They'll be judged by a line-up of expert movers including previous competition winner Mouse. Under-14s must be accompanied by an adult and purchase seats in the circle balcony.