He continued to have a successful career, with some highlights such as singing the Crowded House track "Don't Dream It's Over" at the Nelson Mandela 70th Birthday Tribute in 1988, producing a popular duet, "Senza una donna (Without a Woman)," with Italian blues singer Zucchero in 1991, and singing "Radio Ga Ga" with the surviving members of Queen in 1992, at The Freddie Mercury Tribute Concert soon after Freddie Mercury died.