Which Beatles song is associated with Charles Manson?

"Helter Skelter" is a song by the English rock band the Beatles from their 1968 double album The Beatles (also known as "the White Album"). It was written by Paul McCartney and credited to Lennon–McCartney. The song was a product of McCartney's attempt to create a sound as loud and dirty as possible. The Beatles' recording has been noted for its "proto-metal roar" and is considered by music historians to be a key influence in the early development of heavy metal.

Along with other tracks from the White Album, "Helter Skelter" was interpreted by cult leader Charles Manson as a message predicting inter-racial war in the US. Manson titled his vision of this uprising "Helter Skelter" after the song.

Paul McCartney was inspired to write "Helter Skelter" after reading an interview with the Who's Pete Townshend where he described their latest single, "I Can See for Miles", as the loudest, rawest, dirtiest song the Who had ever recorded. McCartney said he then wrote "Helter Skelter" "to be the most raucous vocal, the loudest drums, et cetera" and that he was "using the symbol of a helter skelter as a ride from the top to the bottom; the rise and fall of the Roman Empire – and this was the fall, the demise."