The band was entered into the main competition at the 20th and 21st editions of the Sanremo Music Festival , with the songs " La stagione di un fiore " and " Lo schiaffo " . Between 1971 and 1972 the lead singer Filiberto " William " Ricciardi temporarily left the band , being replaced by Alberto Tadini , who recorded the singles " Lo schiaffo " and " Piccolo grande amore "
20th
Sanremo Music Festival 1970
Gens (band)