Eric Clapton (whom supported on tour and performed at Royal Albert Hall in London) and Miles Davis, Fornaciari from 1990 on attempted to conquer the rest of Europe. The album Blue's was released the following year in the United Kingdom, and in 1990 Zucchero Sings His Hits in English, an album that featured songs from the Blue's and Oro Incenso & Birra albums, some of which translated to English by Frank Musker, was released worldwide. Fornaciari's best known hit "Senza una donna" ("Without a Woman"), in a duet with Paul Young, is from this album. The first pressing of the album didn't feature the duet: the song was performed by Fornaciari only. The duet was a great success worldwide, it topped the European Hot 100, Italian, Belgian, Norwegian, and Swedish charts, and reached the top 3–5 in other international charts in 1991 including UK and US. Other European singles from the Hits album include English versions of "Diamante", and "Wonderful World" (with Eric Clapton). Diamante was later released as a duet with Randy Crawford, a variant not available on any album until the special edition of Zu & Co. (2004). Although advised to record in English to achieve international popularity he expressed doubt; "unfortunately, the only songs you can translate easily into English are the ballads, the love songs. That is a shame". Between 1991 and 1993 Fornaciari continued duetting with some of the world's most famous artists, such as Sting, Luciano Pavarotti, a young Andrea Bocelli (who after the Zucchero's collaboration on "Miserere" started to get growing popularity), Peter Maffay, Elton John, Brian May and Eric Clapton. Many of these duets would later be included in the compilation Zu & Co. (2004). The 1991 was released Fornaciari's first live album Live at the Kremlin, recorded in Moscow Kremlin 1990 (being the first Western artist to perform there after the fall of Berlin Wall) and featuring guest appearances by Randy Crawford (on John Lennon's "Imagine") and Toni Childs. In 1992 was invited by Brian May to perform at The Freddie Mercury Tribute Concert, with the remaining three members of Queen - Brian May, John Deacon and Roger Taylor, singing "Las Palabras de Amor". He admitted having been 'terrified' before hitting the Wembley Stadium stage, as this was his first time performing live at a worldwide broadcast event. In 1993 was invited by Dan Aykroyd to perform at House of Blues