Paul McCartney was inspired to write the song after reading a 1967 Guitar Player magazine 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 then “wrote ‘Helter Skelter’ to be the most raucous vocal, the loudest drums, et cetera” and said 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.”
Helter Skelter has been covered by dozens or rock bands since then. One of the most notables of these cover version’s is U2’s:
Here’s the original song: