John Entwistle would’ve celebrated his 77th birthday on October 9.

The Who’s iconic bassist would go on to influence countless bass players that followed him and leave a void in The Who that would never be replaced.

In honor of his birthday, here’s a selection of classic photos from his career and life.

• John Entwistle Through the Years

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  British bass guitarist John Entwistle (1944 - 2002) of rock band The Who performing live during the concert tour supporting 'The Who By Numbers' at Wembley Arena, London, UK, 24th October 1975. (Photo by Wood/Evening Standard/Hulton Archive/Getty Images)

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  English bass guitarist for 'The Who' John Entwistle and Alison Wise, 17th March 1967. (Photo by Stan Meagher/Daily Express/Hulton Archive/Getty Images)

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  English bass guitarist for 'The Who' John Entwistle and Alison Wise on the bonnet of a Rolls Royce car, 17th March 1967. (Photo by Stan Meagher/Daily Express/Hulton Archive/Getty Images)

• John Entwistle Through the Years

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  24th June 1967: John Entwistle (1944 - 2002), bass player with British pop group The Who, weds MIss Alison Wise. (Photo by Evening Standard/Getty Images)

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  10th December 1968: Keith Moon (1947-1978, left) and John Entwistle (1944 - 2002) of 'The Who' at Internel Studios in Stonebridge Park, Wembley, where the Rolling Stones are shooting a TV spectacular, 'The Rolling Stone Rock 'n Roll Circus show'. (Photo by Mike Lawn/Fox Photos/Getty Images)

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  17th October 1979: John Entwistle (1944 - 2002, left), bass player with British rock band The Who, gives a friendly tug on the beard of Scottish comedian Billy Connolly at the latter's party at the London nightclub Legends. (Photo by Jon Player/Evening Standard/Getty Images)
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  14th February 1969: British rock group The Who, from left to right; Pete Townshend, John Entwistle (1944 - 2002), Keith Moon (1947 - 1978) and Roger Daltrey, shortly before going on stage at the London Coliseum. (Photo by Steve Wood/Express/Getty Images)

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  10th December 1968: Keith Moon (1947-1978), the drummer of the British mod band 'The Who' with his bandmate, bass guitarist John Entwistle (1944 - 2002), Internel Studios in Stonebridge Park, Wembley, during the making of the unreleased Rolling Stones film 'Rock 'n' Roll Circus'. (Photo by Hulton Archive/Getty Images)

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  Portrait of British rock group, the Who, (L-R): Guitarist Pete Townshend, bassist John Entwistle (1944 - 2002), drummer Keith Moon (1946 - 1978) and singer Roger Daltrey, 1969. (Photo by Steve Wood/Express Newspapers/Getty Images)

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  British rock group The Who, comprising of, from left to right; Keith Moon (1947 - 1978), Pete Townshend, Roger Daltrey and John Entwistle (1944 - 2002). The group are currently working on a film, 'The Kids Are Alright', which looks back at fifteen years of The Who on the road, in recording studios and interviews. (Photo by Keystone/Getty Images)

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  English rock group The Who, during their 1966 German/Swiss tour, from left to right; drummer Keith Moon (1947 - 1978), Roger Daltrey (vocals), John Entwistle (1944 - 2002, bass guitar) and Pete Townshend (guitar). (Photo by Keystone/Getty Images)

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  English musician John Entwistle (1944 - 2002), bass guitarist of rock band The Who, with his wife Alison and baby son Christopher at Queen Charlotte's Hospital in London, 1972. (Photo by Keystone/Hulton Archive/Getty Images)
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  VANCOUVER, CANADA: John Entwistle (L) poses with the Ringo Starr band in the summer of 1995 in Vancouver, Candada. Entwistle died June 27, 2002. (Photo by Jeff Vinnick/Getty Images)

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  John Entwistle bass player for The Who performing at The Concert for New York City at Madison Square Garden in New York City, 10/20/01. The show will benefit victims of the World Trade Center disaster. Photo by Scott Gries/Getty Images

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  VANCOUVER, CANADA: John Entwistle (L) poses with the Ringo Starr band in the summer of 1995 in Vancouver, Candada. Entwistle died June 27, 2002. (Photo by Jeff Vinnick/Getty Images)

• John Entwistle Through the Years

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  VANCOUVER, CANADA: John Entwistle plays with the Ringo Starr band in the summer of 1995 in Vancouver, Candada. Entwistle died June 27, 2002. (Photo by Jeff Vinnick/Getty Images)

• John Entwistle Through the Years

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  VANCOUVER, CANADA: John Entwistle plays with the Ringo Starr in the summer of 1995 in Vancouver, Candada. Entwistle died June 27, 2002. (Photo by Jeff Vinnick/Getty Images)

• John Entwistle Through the Years

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  VANCOUVER, CANADA: John Entwistle plays with the Ringo Starr band in the summer of 1995 in Vancouver, Candada. Entwistle died June 27, 2002. (Photo by Jeff Vinnick/Getty Images)

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