David Bowie ( /ˈboʊ.i/ BOH-ee; born David Robert Jones on 8 January 1947) is an English musician, actor, record producer and arranger. A major figure for over four decades in the world of popular music, Bowie is widely regarded as an innovator, particularly for his work in the 1970s. He is known for his distinctive voice and the intellectual depth and eclecticism of his work.

Bowie first caught the eye and ear of the public in July 1969, when his song "Space Oddity" reached the top five of the UK Singles Chart. After a three-year period of experimentation he re-emerged in 1972 during the glam rock era with the flamboyant, androgynous alter ego Ziggy Stardust, spearheaded by the hit single "Starman" and the album The Rise and Fall of Ziggy Stardust and the Spiders from Mars. Bowie's impact at that time, as described by biographer David Buckley, "challenged the core belief of the rock music of its day" and "created perhaps the biggest cult in popular culture." The relatively short-lived Ziggy persona proved merely one facet of a career marked by continual reinvention, musical innovation and striking visual presentation.

Roger Keith "Syd" Barrett (6 January 1946 – 7 July 2006), was an English singer-songwriter, guitarist and painter, best remembered as a founder member of the band Pink Floyd. He was the lead vocalist, guitarist and primary songwriter during the band's psychedelic years, providing major musical and stylistic direction in their early work, including their name. He left the group in 1968 amid speculations of mental illness exacerbated by drug use, and was briefly hospitalised.

Besides being a pioneer in psychedelic rock with his expressive guitar playing and imaginative compositions, Barrett was also a pioneer in the space rock and psychedelic folk genres. He was active in music for only about seven years, recording four singles, the debut album (and contributed to the second one), plus several unreleased songs with Pink Floyd; and a single and two albums (plus a third one of unreleased tracks/alternate takes), as a solo musician, before going into self-imposed seclusion lasting more than thirty years.

John Anthony Frusciante ⁱ/fruːˈʃɑːnteɪ/; born March 5, 1970) is an American guitarist, singer, songwriter, record and film producer. He is best known as the former guitarist of the rock band Red Hot Chili Peppers, with whom he had been for a number of years and recorded five studio albums. Frusciante has an active solo career, having released ten albums under his own name, as well as two with Josh Klinghoffer and Joe Lally as Ataxia. His solo recordings include elements ranging from experimental rock and ambient music to New Wave and electronica. Influenced by guitarists of various genres, Frusciante emphasizes melody and emotion in his guitar playing, and favors vintage guitars and analog recording techniques.

Frusciante joined the Red Hot Chili Peppers at eighteen years old, first appearing on the band's 1989 album, Mother's Milk. The group's follow-up album, Blood Sugar Sex Magik (1991), was a breakthrough success. However, he was overwhelmed by the band's new popularity and quit in 1992. He became a recluse and entered a long period of drug addiction, during which he released his first solo recordings: Niandra Lades and Usually Just a T-Shirt (1994) and then Smile from the Streets You Hold (1997). In 1998, he successfully completed drug rehabilitation and rejoined the Red Hot Chili Peppers with the album Californication (1999). His album To Record Only Water for Ten Days was made in 2001. On a creative spree, Frusciante released six solo albums in 2004; each album explored different recording techniques and genres. In 2009, Frusciante released The Empyrean and again parted ways with the Red Hot Chili Peppers. As of 2011, Frusciante is currently working on his eleventh solo album. Frusciante has produced and/or recorded with the Wu-Tang Clan, The Mars Volta, George Clinton and others. His most recent solo releases will be a 5 song EP entitled Letur-Lefr, due out in July 2012, and a full length album entitled PBX Funicular Intaglio Zone, due out in late 2012.