After recording the album's backing tracks with Spector, Harrison carried out most of the overdubbing without him, working at Trident Studios with former Beatles engineer Ken Scott. The song's vocals and strings, along with a brief slide-guitar commentary from Harrison over the final verse, Dated 19 August, Spector's written comments on Harrison's early mix of the song had suggested a "proper background voice" was still needed. Harrison performed all the chorus vocals himself and credited them to "the George O'Hara-Smith Singers". Spector was impressed with Harrison's dedication in the studio, saying, "He was a great harmoniser ... he could do all the parts himself" and rating Harrison "one of the most commercial musicians and songwriters and quintessential players I've ever known in my entire career".