The artist behind the famous Lostwave song "Ulterior Motives" (previously dubbed 'Everyone Knows That'), Who's Who is the alias of twin brothers Christopher Saint Booth and Philip Adrian Booth. The two worked on music in the 1980s, with many of their songs being sent over to adult film producers as music for their movies. One song, famously dubbed as "Everyone Knows That" or "EKT", became a viral sensation after a 3 year search for the song ended in its discovery in the adult film "Angels of Passion" as Ulterior Motives by Who's Who. Since learning of the search and discovery, Who's Who have reunited and worked on releasing a rerecorded and remastered album of the songs they never released in the 1980s. Christopher Saint Booth went on to have a successful solo career composing horror movie soundtracks and ambient synth albums, his most recent solo effort being 2024's "SkyPolar" album. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.