Demos are seldom heard by the public, although some artists do eventually release rough demos in
compilation albums or
box sets, such as the album
Demolicious by
Green Day. Other demo versions have been unofficially released as
bootleg recordings, such as
the Beatles'
bootleg demos and
the Beach Boys'
Sea of Tunes series. Several artists have eventually made official releases of demo versions of their songs as albums or companion pieces to albums, such as
Florence and the Machine ("
What the Water Gave Me", among others) and
Cults on the EP
Sunday Jams. The event of a demo tape appearing on
eBay has happened in the past, with the recordings being leaked onto the internet. In rare instances, a demo may end up as the final released recording of a song, as was the case with
Foster the People's "
Pumped Up Kicks". The version of "Pumped Up Kicks" that was released as a single and subsequently became a hit was a demo recorded by frontman Mark Foster alone, before he had formed the group. In 1982,
Bruce Springsteen recorded ten demo songs in his bedroom that he intended to later record with his
E Street Band, but he subsequently decided that he preferred the acoustic demos and released them as the 1982 album
Nebraska. In more underground forms of music, such as
noise music,
black metal or
punk rock, demos are often distributed by bands to fans as self-releases or sold at a very low price. Amateur (and some professional) musicians may choose to make demos available to interested listeners through websites such as
SoundCloud or
Bandcamp in order to share new ideas, receive feedback and/or provide fans with "behind the scenes" access to the songwriting process. In 1977, punk band the
Sex Pistols released an album of demos called
Spunk, which has been compared favourably to the production of their only studio album ''
Never Mind the Bollocks, Here's the Sex Pistols''. ==Footnotes==