In 2003 he joined Milan for a fee of €8.5 million. While at Milan, Kaká won the Ballon d'Or and FIFA World Player of the Year awards in 2007. After his success with Milan, Kaká joined Real Madrid for a transfer fee of €65 million. At the time, this was the second highest transfer fee (in euros) ever, behind only the €75 million fee for Zinedine Zidane. In addition to his contributions on the pitch, Kaká is known for his humanitarian work. In 2004, by the time of his appointment, he became the youngest ambassador of the UN World Food Programme. Kaká was the first sportsperson to amass 10 million followers on Twitter.