Desc: Concrete Jungle: Directed by Eli Morgan Gesner. With Travis Barker, Tony Hawk, Terry Kennedy, KRS-One. In the 1970's, on opposite sides of the city and opposite sides of the country, two separate yet equally dynamic new art forms were emerging. Both possessed a rebellious spirit and quickly evolved into movements that have become a global phenomenon and the creative voice of a generation. Hip Hop and Skateboarding were born.