Brother and sister Gianni and Marcella Bella made their recording industry debut together in the early '70s with hit songs such as "Hai Ragione Tu" (1971), "Montagne Verdi" (1972), "Io Domani" (1973), and "Nessuno Mai" (1974). The duo was introduced to Italian audiences thanks in large part to Marcella's performance at the very first Sanremo Festival, singing "Montagne Verdi." The Bellas won the prestigious Gondola of Gold Award from the Mostra Internazionale di Venezia for the record "Nessuno Mai." Collaborations with the acclaimed producer Mogol characterized Gianni and Marc...