Yann Peifer (born 6 March 1974), known professionally as Yanou, is a German trance and Eurodance musician and producer. He is most famous for collaborating on DJ Sammy's hit "Heaven" with vocalist Do and for being a member of the popular German trance acts Tune Up! with DJ Manian, and Cascada alongside Natalie Horler as well as Manian. Before Yanou worked with Tune Up!, Cascada and DJ Sammy, he produced and wrote tracks for "Beam & Yanou" in the late 1990s.

Source: Wikipedia (https://en.wikipedia.org/wiki/Yanou)