A YouTube video uploaded by rjciccone explores the mysterious “Sgt. Pepper’s Inner Groove” from The Beatles’ 1967 mono UK Parlophone LP, playing the hidden track both forwards and backwards for over a minute each. The inner groove appears after “A Day in the Life” on the UK version of ‘Sgt. Pepper’s Lonely Hearts Club Band’ but was not included on the American LP, first appearing in the U.S. on the ‘Rarities’ album in 1980. Fans have long debated the cryptic message within this groove, with forward interpretations ranging from “Lucy Annie all the way” to “never could be any other way,” while backwards playback has fueled “Paul is Dead” conspiracy theories with possible phrases like “Will Paul be back as Superman?” The video notes that while The Beatles released a 50th anniversary box set of the album in May 2017 with remastered stereo and mono versions, Dolby surround 5.1, and plenty of outtakes and demos, the inner groove backwards remains exclusive to fan-created content like this upload.