You will hear a Nile Rodgers song today. It will make you happy. Legendary producer and co-founder of Chic, Nile wrote ''We are Family'' for Sister Sledge and ''I''m Coming Out'' for Diana Ross, and then produced Let''s Dance for David Bowie and Like a Virgin for Madonna. But before he reinvented pop music Nile Rodgers invented himself. Le Freak is an astonishing, exuberant and inspiring story of a creative genius. It is also a stunning recreation of a time and place - by the man who wrote its soundtrack.