Historical clue formulations

• 1963 Kingsmen hit with a repetitive title — 2026-08-17
• 1963 hit for the Kingsmen — 2022-05-08
• 1963 song investigated by the F.B.I. for supposedly obscene lyrics — 2014-09-26
• *Hit song for the Kingsmen with famously unintelligible lyrics — 2013-05-27