Kaká, full name Ricardo Izecson dos Santos Leite, is a retired Brazilian professional footballer born on April 22, 1982. He is widely regarded as one of the best attacking midfielders of his generation. Kaká began his career at São Paulo FC before moving to AC Milan, where he won numerous titles, including the UEFA Champions League and the FIFA Club World Cup. In addition to his club success, Kaká was a key player for the Brazil national team, helping them win the 2002 FIFA World Cup. He also received the prestigious Ballon d'Or award in 2007, recognizing him as the world's best player that year.