"What Is Life" adalah sebuah lagu karya George Harrison dari album triple tahun 1970-nya bertajuk All Things Must Pass. Di banyak negara, lagu ini dikeluarkan sebagai single kedua dari album, pada Februari 1971, menjadi hit sepuluh besar di Amerika Serikat, Kanada, dan tempat lain, dan menduduki puncak tangga lagu single di Australia dan Swiss. Di Inggris Raya, "What Is Life" muncul sebagai B-side untuk "My Sweet Lord", yang merupakan single terlaris di sana pada tahun 1971. Musisi pendukung Harrison pada lagu tersebut termasuk Eric Clapton dan seluruh anggota Delaney & Bonnie and Friends, saat melakukan tur selama bulan-bulan terakhir the Beatles. Harrison ikut memproduseri rekaman dengan Phil Spector, yang produksi Wall of Sound-nya juga menggunakan aransemen string yang menonjol oleh John Barham dan beberapa gitar ritme akustik, yang dimainkan oleh rekan Harrison.[1]
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- Joshua M. Greene, Here Comes the Sun: The Spiritual and Musical Journey of George Harrison, John Wiley & Sons (Hoboken, NJ, 2006; ISBN 978-0-470-12780-3).
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- Robert Rodriguez, Fab Four FAQ 2.0: The Beatles' Solo Years, 1970–1980, Backbeat Books (Milwaukee, WI, 2010; ISBN 978-1-4165-9093-4).
- Patricia Romanowski & Holly George-Warren (eds), The New Rolling Stone Encyclopedia of Rock & Roll, Fireside/Rolling Stone Press (New York, NY, 1995; ISBN 0-684-81044-1).
- Nicholas Schaffner, The Beatles Forever, McGraw-Hill (New York, NY, 1978; ISBN 0-07-055087-5).
- Bruce Spizer, The Beatles Solo on Apple Records, 498 Productions (New Orleans, LA, 2005; ISBN 0-9662649-5-9).
- Gary Tillery, Working Class Mystic: A Spiritual Biography of George Harrison, Quest Books (Wheaton, IL, 2011; ISBN 978-0-8356-0900-5).
- Bobby Whitlock with Marc Roberty, Bobby Whitlock: A Rock 'n' Roll Autobiography, McFarland (Jefferson, NC, 2010; ISBN 978-0-7864-6190-5).
- Bob Woffinden, The Beatles Apart, Proteus (London, 1981; ISBN 0-906071-89-5).
- Kenneth Womack, The Beatles Encyclopedia: Everything Fab Four, ABC-CLIO (Santa Barbara, CA, 2014; ISBN 978-0-313-39171-2).
