Pet Sounds is the eleventh studio album by the American rock band The Beach Boys, released May 16, 1966, on Capitol Records. It has since been recognized as one of the most influential records in the history of popular music and one of the best albums of the 1960s, including songs such as "Wouldn't It Be Nice" and "God Only Knows". Pet Sounds was created several months after Brian Wilson had quit touring with the band in order to focus his attention on writing and recording. In it, he wove elaborate layers of vocal harmonies, coupled with sound effects and unconventional instruments such as bicycle bells, buzzing organs, harpsichords, flutes, Electro-Theremin, dog whistles, trains, Hawaiian-sounding string instruments, Coca-Cola cans and barking dogs, along with the more usual keyboards and guitars.

Although Pet Sounds has been credited as one of the most important albums of its time, its initial release failed to reach gold status, where it reached #10 on the American Billboard 200. A heralding album in the emerging psychedelic rock style, Pet Sounds has been championed and emulated for its dramatic and revolutionary baroque instrumentation. It has been ranked at #1 in several music magazines' lists of greatest albums of all time, including New Musical Express, The Times and Mojo Magazine. It was ranked #2 in Rolling Stone's 500 Greatest Albums of All Time list.