Literally meaning 'little step,' Passinho is the dance craze that's taken over Rio. It's a combo of Samba, Frevo and Freestyle performed over a heavy baile beat. And the youth are hooked. There are documentaries, competitions and thousands of YTube videos, spreading cross-class making this dance more than just a trend and perhaps a chance for a way out. Samba was underground 20years back, look where it is now.