David Gilmour replaced Syd Barrett as Pink Floyd's guitarist. Barrett's erratic behavior, worsened by drug use, led to his exit during late 1967, right around their sole U.S. tour that fall—a chaotic debut marked by his unreliability on stage. Gilmour, a childhood friend from Cambridge, stepped in as the fifth member in December 1967, initially helping with guitar and vocals while Barrett lingered briefly, before becoming the official replacement by April 1968.

The Chaotic U.S. Tour Context

Pink Floyd's first American shows in November 1967, supporting their debut album The Piper at the Gates of Dawn , were Barrett's last with the band stateside. He famously stood motionless during performances or detuned his guitar, forcing the others to improvise around him. This "amazing disaster," as later described, crystallized the crisis, prompting the urgent addition of Gilmour soon after.

Early Replacement Buzz and Alternatives

While Gilmour was the choice, band lore reveals they flirted with others like Jeff Beck—admired for his Yardbirds prowess—but never seriously pursued him, as Gilmour's familiarity and style fit seamlessly. Eric Clapton and Frank Zappa pop up in trivia quizzes as red herrings, but no evidence ties them to the role.

Timeline of Transition

  • Nov 1967 : U.S. tour implodes due to Barrett's issues.
  • Dec 1967 : Gilmour joins, overlapping briefly for stability.
  • April 1968 : Official announcement: "Syd's out, David's in".

This shift propelled Pink Floyd from psychedelic pioneers to prog-rock giants, with Gilmour's soaring solos defining hits like "Comfortably Numb."

Fan and Forum Takes

Reddit threads echo the drama: fans recall Wish You Were Here as a tribute to Barrett's decline, blending awe and tragedy. Recent posts (even into 2025) speculate on "what if" scenarios, like Beck joining, but affirm Gilmour's pivotal save of the band.

TL;DR: David Gilmour filled the void left by Syd Barrett specifically during and after Pink Floyd's disastrous 1967 U.S. tours.

Information gathered from public forums or data available on the internet and portrayed here.