Smile is an unfinished album by the American rock band the Beach Boys that was intended to follow their 1966 album Pet Sounds. It was to be an LP of twelve tracks assembled from modular fragments, the same editing process used for their "Good Vibrations" single. Instead, after a year of recording, the album was shelved and the group released a downscaled version, Smiley Smile, in September 1967. Over the next four decades, few of the original Smile tracks were officially released, and the project came to be regarded as the most legendary unreleased album in popular music history.

"Good Vibrations" is a song by the American rock band the Beach Boys that was composed by Brian Wilson with lyrics by Mike Love. It was released as a single on October 10, 1966 and was an immediate critical and commercial hit, topping record charts in several countries including the United States and the United Kingdom. Characterized by its complex soundscapes, episodic structure and subversions of pop music formula, it was at the time the most expensive single ever recorded. "Good Vibrations" later became widely acclaimed as one of the finest and most important works of the rock era.