Idea is the fifth studio album and third international release by the English rock band Bee Gees. Released in September 1968, the album sold over a million copies worldwide. The album was issued in both mono and stereo pressings in the UK. The artwork on the Polydor release designed by Wolfgang Heilemann featured a lightbulb with a group photo in its base, while the North American ATCO release designed by Klaus Voormann featured a composite head made from each band member. No singles from the album were issued in the UK, but ATCO released both "I've Gotta Get a Message to You" and "I Started a Joke" in North America.
The band recorded its previous album Horizontal between July and December 1967. The last song recorded was "Swan Song," but this was not released until 1968 on Idea. "Words" was released as a single in place of "Swan Song."
The band started recording Idea on January 1968. The songs recorded were "Chocolate Symphony," "The Singer Sang his Song," "Down to Earth," "I Can Lift a Mountain," ("Gena's Theme" was finished in June,) "Jumbo" was released as a non-album single, "Bridges Crossing Rivers," and "She is Russia." The February songs are "In the Summer of His Years" and "I've Decided to Join the Air Force." By March, Barry, Maurice, and Colin participated on the track "By the Light of the Burning Candle" The Marbles, a newly formed band at that time made up of members Graham Bonnet and Trevor Gordon. Between June and July in 1968, they recorded "Kitty Can," "I.O.I.O.," "Let There Be Love," "Stepping Out," and "No Name". In June, Robin recorded "The Band Will Meet Mr. Justice," "The People's Public Joke," "Indian Gin and Whisky Dry," "The Girl to Share Each Day," "Come Some Halloween Or Christmas Day," "My Love Life Expired," and "Heaven in My Hand," a mono tape of seven songs which was credited only to him. In the same month, they recorded "Completely Unoriginal," "Kilburn Towers," the Vince Melouney composition "Such a Shame," "Indian Gin and Whisky Dry," "When the Swallows Fly," "Idea," "Come Some Christmas Eve Or Halloween," "Maypole News," "Men of Men," and "I Started a Joke."
The other songs recorded around 1968 included "Sitting in the Meadow" and "Another Cold and Windy Day," both recorded for Coca Cola, "In the Middle of Grass," "Let Your Heart Out," and "The Square Cup". "Everything That Came From Mother Goose" was written by Colin Petersen and Maurice Gibb, and Petersen mentioned this song in an interview in September 1968. In July, "I've Gotta Get a Message to You" was recorded in the same session as "I Laugh in Your Face" (released on Odessa, 1969) following the completion of the album, but was only included on the US version.
This album features "Such a Shame," the only non-Gibb Bee Gees song, written and co-sung by lead guitarist Vince Melouney. "Such a Shame" was included on the British version of the album but deleted from the American issue, which in turn included their recent hit "I've Gotta Get a Message to You," not on the UK LP. When the album was issued on CD in the 1980s, both tracks were included. "I Started a Joke" was not issued as a single in the UK, but it reached No. 6 in America. The UK sleeve had a lightbulb on a dark blue ground. In 2006, Reprise Records reissued Idea (using the European cover) with both stereo and mono mixes on one disc and a bonus disc of unreleased songs, non-album tracks, and alternate mixes. "I Started a Joke" was not released as a single in the United Kingdom. After the release of Idea, the band went to Brussels for the TV special Idea in September, and European tour in October and November. After that, Vince left the band saying, "I was just too young, too naive." His final album with the band was Odessa, which was recorded in August that year.