Ronnie James Dio (born Ronald James Padavona, July 10, 1942 – May 16, 2010) was an American rock and heavy metal vocalist and songwriter. He fronted numerous groups including Elf, Rainbow, Black Sabbath, Heaven & Hell, and his own band, Dio. He is credited with popularizing the "metal horns" hand gesture in metal culture. Dio has sold over 47 million albums throughout his career.

Ian Fraser Kilmister (24 December 1945 – 28 December 2015), known as Lemmy, was an English musician, singer and songwriter who founded and fronted the rock band Motörhead. His music was one of the foundations of the heavy metal genre. He was known for his appearance (including his friendly mutton chops) and his distinctive gravelly voice. Alongside his music career, he also had many minor roles in film and television.
Lemmy was born in Stoke-on-Trent and grew up in North Wales. He was influenced by rock and roll and the early Beatles, which led to him playing in several rock groups in the 1960s, including the Rockin' Vickers. He worked as a roadie for Jimi Hendrix and the Nice, before joining the space rock band Hawkwind in 1971, singing lead on their hit "Silver Machine". After being fired from Hawkwind, he founded Motörhead as lead singer, bassist, songwriter and frontman. Motörhead's success peaked in 1980 and 1981 and included the hit single "Ace of Spades" and the top charting live album No Sleep 'til Hammersmith. Lemmy continued to record and tour regularly with Motörhead until his death in December 2015 in Los Angeles, where he had lived from 1990.
Lemmy was born in Stoke-on-Trent and grew up in North Wales. He was influenced by rock and roll and the early Beatles, which led to him playing in several rock groups in the 1960s, including the Rockin' Vickers. He worked as a roadie for Jimi Hendrix and the Nice, before joining the space rock band Hawkwind in 1971, singing lead on their hit "Silver Machine". After being fired from Hawkwind, he founded Motörhead as lead singer, bassist, songwriter and frontman. Motörhead's success peaked in 1980 and 1981 and included the hit single "Ace of Spades" and the top charting live album No Sleep 'til Hammersmith. Lemmy continued to record and tour regularly with Motörhead until his death in December 2015 in Los Angeles, where he had lived from 1990.

David Bowie was born in South London's Brixton neighborhood on January 8, 1947. His first hit was the song "Space Oddity" in 1969. The original pop chameleon, Bowie became a fantastical sci-fi character for his breakout Ziggy Stardust album. He later co-wrote "Fame" with Carlos Alomar and John Lennon which became his first American No. 1 single in 1975. An accomplished actor, Bowie starred in The Man Who Fell to Earth in 1976. He was inducted into the Rock and Roll Hall of Fame in 1996. Bowie died on January 10, 2016, from cancer at the age of 69.