Cosmo's Factory is the fifth studio album by American rock band Creedence Clearwater Revival, released by Fantasy Records in July 1970, and released as Fantasy 8402 – the same month as the single release of "Lookin' Out My Back Door" with "Long As I Can See the Light" on the B-side. The album spent nine consecutive weeks in the number one position on the Billboard 200 chart.
 
With the release of Cosmo's Factory in July 1970, Creedence Clearwater Revival hit their commercial zenith. It was their fifth album in two years and became an international smash, topping the album charts in six countries. The band also toured Europe in 1970, playing the Royal Albert Hall to enthusiastic audiences, and had emerged as the most popular band in America by largely ignoring the trippy acid rock indulgences that were typical of the era. However, despite the band's infectious blend of rockabilly, folk, and R&B, some peers and rock critics dismissed them as a singles band with no substance. In a 2012 cover story, Uncut observed, "While San Francisco longhairs across the bridge scoffed at their commercialism, Creedence henceforth made a point of releasing double A-sides. And invariably both songs would have an uncanny knack of cutting through to all sections of the population." Singer and lead guitarist John Fogerty, who had seemingly arrived out of nowhere, but had actually struggled with his bandmates throughout most of the 1960s as the Blue Velvets and the Golliwogs, composed the group's songs and generally steered the band artistically, although his grip on the band – including his dubious role as manager – irritated the others, especially his older brother Tom Fogerty, who left the band by the end of 1970.