A wax sculpture of Ronaldinho was unveiled at Madame Tussauds Hong Kong in December 2007. Ronaldinho has had an official role with UNICEF, the United Nations Children's Fund, since February 2006. In 2011, he was recruited by the Joint United Nations Programme on HIV/AIDS to promote awareness among young people of the disease and how to avoid it. In March 2015, Ronaldinho was the sixth most popular sportsperson on Facebook, behind Cristiano Ronaldo, Messi, Beckham, Neymar and Kaká, with 31 million Facebook fans. Ronaldinho also has over 50 million Instagram followers.