Notably, on the occasion of the 1990 FIFA World Cup, which were held in Italy, Edoardo sang the official song of the event: "Un'estate italiana" ("An Italian Summer") together with Gianna Nannini.
The experience with the pair of authors has direct her, in the 1970s, at the Dischi Ricordi, where she became a talent discoverer of singer like Gianna Nannini.
Gianna Nannini (born 1954), Italian female singer-songwriter and Pop musician
In the rock/pop field, he has collaborated with artists such as Gianna Nannini, Middle of the Road, Lynn Anderson, Helmut Zerlett, Kimberley Dahme, Jon Walmsley and Johan Eliasson among others.
"Donna d'Onna" (English: Woman from Onna) is a song written by Italian singer-songwriter Gianna Nannini and Italian novelist Isabella Santacroce.
During the Amiche per l'Abruzzo Concert on 21 June 2009 at the San Siro stadium in Milan, Stephan joined the stage with Gianna Nannini, Laura Pausini and others to benefit the victims of the earthquake in the Abruzzes.