劇場版 戦国BASARA -The Last Party- [Ending] [720p] 

This is the ending of the movie 劇場版 戦国BASARA The Last Party released in 2011 by Production I.G. This dance scene is one of the most epic ones I ever saw. I love how they even made the dancing samurais vary slightly in their rhythm, just like real people would. The song is "The Party Must Go On" from T.M.Revolution.
The footage does not belong to me, but their respective owners. I just want to share the epicness of this scene.