Young Giulio, who was likewise employed by Ricordi as a public relations expert, began his own career as a lyricist against his father's wishes.
He also recalled to Corriere della sera in 2017: "When the SIAE accepted the pseudonym, I had a stroke because it was the name of the scouts' general in Qui, Quo, Qua [the Italian-language version of Huey, Dewey, and Louie].
Another famous song from 1961 was "Uno dei tanti," which was given English lyrics by Jerry Leiber and Mike Stoller in 1963 for Ben E. King and released under the title "I (Who Have Nothing)".
In the same year, Mogol left the Ricordi label to create his own with Battisti, called Numero Uno, which brought together many celebrated Italian singer-songwriters.
Lately, he began his collaboration with Mango, co-writing successful songs like "Oro", "Nella mia città", "Come Monna Lisa" and "Mediterraneo".
This collaboration has produced the delicate song "L'arcobaleno", included in the CD Io non so parlar d'amore, which is considered dedicated to Battisti, who had recently died.