Stevie Wonder began his career at the age of ten when Berry Gordy, the founder of Motown came to hear him and signed him on the spot. By starting his own studio he was able to incorporate elements of gospel, rock and roll, jazz, African, and Latin rhythms. Some of his hits include "Superwoman", "Superstition", and "You Are the Sunshine of My Life". After a near fatal car crash in 1973 he started to concentrate on altruistic causes and recorded "Ebony and Ivory" with Paul McCartney urging racial harmony. He performed in "We Are the World" to fight world hunger and lobbied to create the Martin Luther King, Jr. national birthday holiday. Wonder's long career has been remarkable not just for his musical genius, but for his persistence in overcoming obstacles.