The 'Everyone Knows That' (EKT) meme originated from one of the internet's most famous lost media mysteries. For years, a 17-second snippet of a catchy 1980s synth-pop song puzzled internet sleuths who couldn't identify the artist or title. In April 2024, the search finally ended with the shocking discovery that the song, actually titled 'Ulterior Motives' by Christopher Saint Booth, was featured in an adult film from 1986. The meme captures the collective shock, hilarity, and relief of the community upon finding the source, often utilizing the iconic pink boombox imagery or referencing the 'ulterior motives' of the search itself.