Herman's Hermits Heartbeat", "Leaning on a Lamp Post", "Mrs. Brown, You've Got a Lovely Daughter", "A Must to Avoid", "You Won't Be Leaving", and "I'm Henry VIII, I Am" (the last said at the time to be "the fastest-selling song in history"). Leckenby soloed on "Henry", and Hopwood played rhythm guitar on "Mrs. Brown". Despite the group's competent musicianship, some subsequent singles employed session musicians – including Big Jim Sullivan, Jimmy Page, John Paul Jones, Vic Flick and Bobby Graham – with contributions from the band, although the role of session players on Herman's Hermits records has been exaggerated in the rock
I've Got a Tiger By the Tail had gotten together to write songs, but things were going slowly. Then, Owens saw an Esso gas station sign with the company's slogan at the time, "Put a tiger in your tank" ... and got an idea. Released in December 1964 (just weeks after he had recorded it), "I've Got a Tiger By the Tail" was Owens' and the Buckaroos sixth No. 1 hit on the "Billboard magazine" Hot Country Singles chart in February 1965. The song is Owens' and the Buckaroos biggest hit (and only top-40 hit) on the "Billboard" Hot 100, where it peaked at No. 25, although