"I'm Henery the Eighth, I Am" (also "I'm Henery the VIII, I Am" or "I'm Henry VIII, I Am"; spelled "Henery" but pronounced "'Enery" in the Cockney style normally used to sing it) is a 1910 British music hall song by Fred Murray and R. P. Weston. It was a signature song of the music hall star Harry Champion. In 1965, it became the fastest-selling song in history to that point when it was revived by Herman's Hermits, becoming the group's second number-one on the Billboard Hot 100 chart. The lead solo on the Hermits' version was played by the group's lead guitarist Derek "Lek" Leckenby. According to one source, Champion "used to fire off [the chorus] at tremendous speed with almost desperate gusto, his face bathed in sweat and his arms and legs flying in all directions." In later versions recorded by Champion, "Willie" is changed to "William" because the former is a British slang term for the penis.