" Wouldn't It Be Nice " is a song by the American rock band the Beach Boys and the opening track from their 1966 album Pet Sounds . Written by Brian Wilson , Tony Asher and Mike Love , it is distinguished for its sophisticated Wall of Sound -style arrangement and refined vocal performances and is regarded among the band's finest songs. With its juxtaposition of joyous-sounding music and melancholic lyrics, it is considered a formative work of power pop and, with respect to musical innovation, progressive pop . – source