NEW YORK (AP) — Wayne Frost, a hip-hop pioneer known as “Frosty Freeze” whose acrobatic performance with the legendary Rock Steady Crew in the 1983 hit movie “Flashdance” set off a worldwide breakdancing craze, died Thursday. He was 44.

Frost died at Mount Sinai Medical Center after a long illness, said Jorge “Fabel” Pabon, a senior vice president of the crew where Frost and other so-called b-boys (for beat or break boys) made their name performing complicated and daring dance routines.

“He was one of most charismatic b-boys that ever lived,” said Benson Lee, director of the new documentary film “Planet B-Boy.”

Breakdancing emerged from the Bronx and Harlem in the early 1970s, part of the hip-hop culture that also included graffiti, MCing or rapping, and disc jockeys scratching and mixing vinyl records on turntables.