Ulterior Motives (song)

Ulterior Motives is a song recorded by British-Canadian musicians and filmmakers Christopher and Philip Booth in the mid-1980s, first appearing in the 1986 pornographic film Angels of Passion. It gained popularity in 2021 after a seventeen-second snippet of the song, at the time unidentified, was posted online. The song was colloquially dubbed "Everyone Knows That" (commonly abbreviated EKT) or "Ulterior Motives", both derived from the then-debated lyrics of the snippet.

The snippet was uploaded to song identification website WatZatSong in 2021 by Spanish user carl92 who claimed to have discovered the recording in an old DVD backup. He speculated that the file was leftover from when he was learning to record audio. It was shared across various social media sites and internet communities, initiating a widespread search for the full song and information about its origin. In February 2024, The Guardian named it "one of the biggest and most enduring musical mysteries on the internet".

On 28 April 2024, Reddit users identified the snippet's origin as being from Angels of Passion. The vocals, guitar and synth tracks for the original recording were deemed lost. The Booth brothers re-recorded the song and included it on their album Ulterior Motives (The Lost Album), released digitally on 23 June 2024 and on CD two weeks later. The album was credited to Who's Who?, a name the Booth brothers had performed under at various points in the 1980s.

In October 2024, the Booth brothers announced that they were investigating a 'new lead' in the search for the original master of Ulterior Motives. They suggested that a tape recording of the original version is in the possession of a copyright registration office whom they contacted to request its release. Christopher stated that if the office can return the tape to them, they will release it "as soon as [they] find it".