Justin Randall Timberlake (born January 31, 1981), occasionally known by his initials JT, is an American singer, songwriter, actor, dancer, and record producer.

Raised in Tennessee, he appeared on the television shows Star Search and The All-New Mickey Mouse Club as a child. In the late 1990s, Timberlake rose to prominence as one of the two lead vocalists and youngest member of NSYNC, which eventually became one of the best-selling boy bands of all time.

Timberlake began to adopt a more mature image as an artist with the release of his debut solo album, the R&B-focused Justified (2002), which yielded the successful singles "Cry Me a River" and "Rock Your Body", and earned his first two Grammy Awards.

John Michael "Ozzy" Osbourne (born 3 December 1948) is an English singer, songwriter, actor and television personality. He rose to prominence during the 1970s as the lead vocalist of the heavy metal band Black Sabbath, during which he adopted the nickname "The Prince of Darkness".

Osbourne was fired from the band in 1979 due to alcohol and drug problems, but he went on to have a successful solo career, releasing eleven studio albums, the first seven of which were all awarded multi-platinum certifications in the United States. Osbourne has since reunited with Black Sabbath on several occasions.