Yannick Noah single "Angela", a tribute to Angela Davis. It also contained a duet with Aṣa in "Hello". On 25 September 2010, he filled the Stade de France for an exceptional concert that was attended by close to 80,000 spectators. Noah is very active in charity work. He supports Enfants de la Terre, a charity created and run by his mother, Marie-Claire, in 1988. Noah also founded Fête le Mur in 1996, a tennis charity and adaptation for underprivileged children, specially in the poor areas and the banlieues. It is presided by Noah himself. He is also a spokesman for Appel des
Tweener (tennis) version was called the "Gran Willy"), Yannick Noah, Ilie Nastase, Gabriela Sabatini (whose version became known as "the Sabatweenie"), Roger Federer, Juan Martín del Potro, Nick Kyrgios, Daria Kasatkina, Agnieszka Radwańska and Simona Halep. The origin of the backward shot is unclear; both Argentine Guillermo Vilas and French player Yannick Noah claim to have invented it. Both players used it somewhat regularly in the 1970s. Vilas was inspired by an advertisement where a polo player hit a backwards shot between his horse's hind legs. He debuted his version in a 1974 exhibition match at the courts of Obras Sanitarias Club