The Smile Sessions is a compilation album and box set recorded by American rock band the Beach Boys, released on October 31, 2011, by Capitol Records. The set is the follow-up to The Pet Sounds Sessions (1997), this time focusing on the abandoned recordings from the band's unfinished 1966–1967 album Smile. It features comprehensive session highlights and outtakes, with the first 19 tracks comprising a hypothetical version of the completed Smile album.

The Pet Sounds Sessions is a 4-CD box set by the American rock band the Beach Boys. Released on November 4, 1997, by Capitol Records, it compiles tracks from the group's 11th studio album Pet Sounds (1966) and its 1965–66 recording sessions. The entire album is included in its original mono mix, as well as a specially-created digital stereo mix. The set also contains instrumental tracks, vocals-only tracks, alternate mixes, and edited highlights from the recording sessions for many of the album's songs, along with several tracks not included on the album.