"I Found Out" is a song by British musician John Lennon, taken from his 1970 album John Lennon/Plastic Ono Band. The song is angry and intensely bitter, expressing Lennon's disillusionment with a world dominated by falsehood.
In another common theme on the album, the song is also critical of Lennon's former band The Beatles. During the late 1960s, bandmate George Harrison became interested in Eastern mysticism; Lennon dismisses Harrison's beloved gurus and Hare Krishna mantra as "pie in the sky. Lennon also claims that he's "seen religion from Jesus to Paul." This double reference to Paul the Apostle and bandmate Paul McCartney implies that the Beatles were not loved for their music so much as worshipped as gods.
The instrumentation, style, and production of the song are typical of Lennon's Plastic Ono Band era work. The song features a low, rumbling tremolo guitar, thumping drums, a rolling, minimal bass line, and a scathing vocal delivery. The recording is bare-bones, in stark contrast to the heavy production of Lennon's later albums. It is one of the more blues based songs on Plastic Ono Band.
The song was covered by the Red Hot Chili Peppers on Working Class Hero.