Event judge William Antony Bruno of Biddeford performs for the crowd during The Exchange. The event was also a fundraiser for the Phunk Phenomenon's Hip-Hop for Hope, raising awareness of Sanfilippo Syndrome, a rare genetic disorder.

Anna Bainter-Clark, 10, of Westbrook competes in The Exchange, a hip-hop dance event sponsored by Portland Youth Dance at Avant Dance Center in Westbrook on Saturday. The idea was to gather street and studio dancers and let both showcase their styles at one venue, according to Elizabeth Lau of Portland Youth Dance. The event drew 70 competitors and 350 spectators.

Emilio Valadez, left, and Rakeem Sullivan, both of Lewiston, compete at The Exchange on Saturday.

Hundreds of spectators watch a hip-hop dance performance at Avant Dance Center in Westbrook on Saturday.

A competitor dances on his head during The Exchange.

Portland Youth Dance members hug after a performance. They are, clockwise from left, Anna Bainter-Clark, Ben Medd, Kasey Gabloff, Dani Crosti and, being hugged, Ruby Sokol.