Adelmo Fornaciari, more commonly known by his stage name Zucchero Fornaciari or simply Zucchero, is an Italian singer, musician and songwriter. His stage name is the Italian word for "sugar", as his elementary teacher used to call him. His music is largely inspired by gospel, soul, blues and rock music, and alternates between Italian ballads and more rhythmic R&B-boogie-like pieces. He is credited as the "father of Italian blues", introducing blues to the big stage in Italy. He is one of the few European blues artists who still enjoys great international success.

"Diamante " is a 1989 song composed by Francesco De Gregori (lyrics), Zucchero Fornaciari, Mino Vergnaghi and Matteo Saggese (music) and performed by Zucchero Fornaciari.