Per wikipedia: “Something” is a song by the English rock band the Beatles from their 1969 album Abbey Road. It was written by George Harrison, the band’s lead guitarist. Soon after the album’s release, the song was issued as a single, coupled with “Come Together”, making it the first Harrison composition to become a Beatles A-side. Its pairing with “Come Together” was also the first time in the United Kingdom that the Beatles issued a single containing tracks that were already available on an album. The single topped the Billboard Hot 100 in the United States as well as charts in Australia, Canada, New Zealand and West Germany, and peaked at number 4 in the UK.
“Something” is widely viewed by music historians as having marked Harrison’s ascendancy as a composer to the level of the Beatles’ principal songwriters, John Lennon and Paul McCartney. It is described as a love song to Pattie Boyd, Harrison’s first wife, although Harrison offered alternative sources of inspiration in later interviews. Due to the difficulty he faced in getting more than two of his compositions onto each Beatles album, Harrison first offered “Something” to Joe Cocker. As recorded by the Beatles, the track features a guitar solo that several music critics identify among Harrison’s finest playing.