Beginning in 1978, Simonetti founded a number of electronic disco projects. In 1979, with Giancarlo Meo, he formed perhaps his best-known project behind singer Vivien Vee (Viviana Andreattini), whose song "Give Me a Break" became a minor hit in the American dance charts. Later Vivien Vee tracks, particularly "Blue Disease" from 1983, showcased some of the darker and edgier sounds familiar from the Goblin years. Another project he was involved in was Easy Going, with "Baby I Love You" from 1978, and "Fear" from 1979. In 1983, he was the central member of the Italo disco group Crazy Gang.