When George Harrison recorded “Something” with The Beatles for release on Abbey Road (1969), its success was almost a sure thing. Both John Lennon and Paul McCartney admired George’s work on the track, and for the first time ever a Harrison-penned song went out as the A-side of a Beatles single.
The record-buying public agreed with that decision, and made “Something” a Billboard No. 1 hit following its October ’69 release. But it had been a bit of a winding road leading up to the recording and inclusion of “Something” on the final Beatles studio album.
During the Get Back/Let It Be sessions in early ’69, George struggled to finish his masterpiece. In a recording from the rehearsals, you hear him tell John and Paul he’d gone six months without being able to write lyrics for his music.
When he nailed down the song for a demo in Feb. ’69, he still didn’t know if it would go out on a Beatles record. And so George offered his prize song to at least one more recording artist, who recorded his version around the same time The Beatles completed theirs.
Source: cheatsheet.com