General · EdgepediaSeptember 17, 20265 min read

Hidden track

A hidden track is a song or piece of audio placed on a recorded medium, such as a CD, cassette, or vinyl LP, in a way that avoids detection by the casual listener, most commonly by leaving it off the printed track listing.¹⁰ Some hidden pieces are simply unlisted, while others require deliberate action to reach, such as rewinding a CD player before the first track or dropping a record needle on a second groove.

Key fact	Detail
Definition	Audio placed on a recorded medium so as to avoid detection by the casual listener, usually by omission from the track listing¹¹
First example	"Her Majesty", appended to the end of The Beatles' Abbey Road (1969) after a mastering accident, is generally regarded as the first true hidden track¹^•²
Pregap method	Audio hidden before track one ("Track 0" or Hidden Track One Audio), reachable only by cueing to track one and manually back-scanning³
Vinyl methods	Double grooves holding different recordings, and locked inner grooves that repeat a passage indefinitely¹

Origin at Abbey Road

The first hidden track was an accident. John Kurlander, then a teenage tape assistant at Abbey Road studios and later a Grammy-winning movie soundtrack engineer, was assembling rough mixes of the Beatles' Abbey Road medley in 1969. Paul McCartney told him to remove "Her Majesty", the fourth song in the sequence, because it did not work. Studio rules required edited material to be left at the end of the mix, so Kurlander spliced it on after nearly 20 seconds of silence and filed the tape in the studio's tin of masters with a note explaining why. Mastering engineer Malcolm Davies, who had recently moved to the Beatles' Savile Row Apple studio, did not understand the note and cut the acetate with the song still attached. When the master was played back the next afternoon, "Her Majesty" kicked in unexpectedly and made the band jump; they liked it and kept it on the pressing. The song was not listed on the album's back cover.¹

The boundary of the term is loose. Earlier precedents exist on vinyl: The Beatles ended Sgt. Pepper's Lonely Hearts Club Band (1967) with a whistle and a sped-up vocal, and The Who Sell Out closed with distorted chanting of their label's name, "Track Records".¹

Techniques by medium

Vinyl. A record can be double-grooved, with a second concentric groove containing hidden material; where the needle lands determines which recording plays. If a turntable's tonearm lacks an automatic return, the stylus runs silently around the inner groove forever, and experimental musicians have recorded passages into that space to repeat continuously.¹ Messages were also etched into the "dead wax" run-out area: each side of The Clash's London Calling carries one word, spelling "Tear Down The Walls" across the four sides.⁴

Compact disc. Two CD methods dominated. The simpler one appends the song to the final listed track after minutes of silence; Nirvana's "Endless, Nameless" was included this way on the 1991 CD of Nevermind, after about 10 minutes of silence, and begins at 13:51 on track 12, "Something In The Way".⁵ The more elaborate method uses the pregap, the space immediately before the first track, known in ripping tools as Track 0 or Hidden Track One Audio (HTOA). A CD player will not play this material without manual intervention: the listener must cue to track one and scan backwards, and some players cannot read such content at all.³ Normally this area holds only a fraction of a second of silence; older CDs commonly carry a pregap of about 0.33 seconds before the first track.³^•⁶ Super Furry Animals placed "The Citizens Band" in the pregap of Guerrilla (1999), roughly five minutes before track one, and printed a glossary of the song's lyrics inside the cardboard outer sleeve, so the notes were hidden in a parallel way to the song.²Cassettes. On tape, a secret track could be placed just before the physical end of the side, rewarding listeners who let the silence run all the way through.⁷

Notable examples

The hidden track had its heyday with the CD in the 1980s and 1990s, when the format's 70- then 80-minute capacity let albums that rarely topped 45 minutes end with several minutes of silence before a surprise.² R.E.M. closed Green (1988) with the unlisted "Track 11".² Lauryn Hill's hidden "Can't Take My Eyes Off of You", at the end of The Miseducation of Lauryn Hill (1998), became a charting track and was nominated for the 1999 Grammy Award for Best Female Pop Vocal Performance.² On original pressings of The Clash's London Calling, "Train in Vain" was a hidden track.⁴ In K-pop, BTS's "Sea" was available only on the physical edition of Love Yourself: Her, so it escaped fans who mostly streamed the group's music.⁸

A hidden track is distinct from a bonus track, which is officially listed as an extra and which the label intends listeners to know about; the hidden track's effect depends on discovery.⁹ Scholars of musical "easter eggs", including Jonathan Weinel, Darryl Griffiths, and Stuart Cunningham of Glyndŵr University, argue that such concealed content can provide comic amusement or support the artistic message of a work, with the method of concealment depending on the medium's properties.⁵

Decline in the streaming era

Streaming exposes the concealed song as an ordinary file listed directly after the track it was buried in, out of context, and iTunes lists many formerly hidden tracks.⁴^•² The practice continues on CDs and in the vinyl resurgence, and some artists now hide material in a different way, such as restricting a track to physical editions of an album or to a particular platform.⁴^•⁸

References

Topic: Encyclopedia › Arts and culture › Music › Musical works and recordings › Albums and recorded releases › Recording formats, attribution, and release metadata

Initially written Sep 17, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026 · Last review: Oct 25, 2026

Notice something wrong?