Juste Debout ("just upright") is an international and annual dance competition founded in 2002 by Bruce Ykanji in France which focuses on street dance styles. The four main categories are hip hop new style, house, locking and popping.

Juste Debout was initially held in 2002 in Paris, France, and has since then returned each year around February. The 2006 edition was the first to feature a number of linked events (so called pre-selections) in countries outside of France, with the finals being held in Paris. This allowed Juste Debout to reach a larger and more international audience.

Juste Debout 2007 was held on February 25 in Paris and featured international pre-selections starting as early as January in countries such as Germany, Italy, Japan, Czech Republic, Spain, Sweden and Switzerland. Jsmooth & Future from the dance crew MGF (Machine Gone Funk) in the USA won the Juste Debout Popping contest 2007. Manu & loïc from France won the Locking. Stéphanie & Dedson from Denmark and France won Hip-hop. Lastly, Hiro & Meech from Japan and France won the House dance contest.

Larry and Laurent Bourgeois, popularly known as "Les Twins" or Larry " Ca Blaze " Bourgeois and Laurent " Lil Beast " Bourgeois, are a hip hop dance duo originating from Sarcelles, France. The twin brothers who are of Guadeloupean descent (Guadeloupe, F.W.I.), are known worldwide for their talents in New Style dancing. Although they can be seen dancing as a duet, they are also a part of a larger crew known as Criminalz Crew, a group with a variety of dancers that range from b-boys to other new style dancers such as themselves. Les Twins have appeared on the television show Incroyable Talent as well as the Ellen DeGeneres Show. Les Twins have competed in multiple dance competitions such as: World Of Dance, Battle Of The Stylez, Urban Dance Showcase and won the Juste Debout Dance Competition in the Hip-Hop New Style category in 2011. ^{[original research?]} They come from a very large family with 18 siblings, and only 9 of whom dance.

Les Twins have performed with Beyoncé Knowles. They have also appeared in Jay-Z's That's Rocawear viral video and the music video for "La Gloria" by French-Argentine band Gotan Project. They were also traveling with Cirque du Soleil Michael Jackson Immortal World Tour as dancers with a newly formed crew especially for the tour, named Veteranz crew until sometime in 2012.