Complex sentence: The lead vocal on The Grass Roots'recording was sung by the band's bassist Rob Grill and the distinctive "1-2-3-4" count-in before the chorus was sung by guitarist Warren Entner.
Split into simpler sentences: The lead vocal on The Grass Roots'recording was sung by the band's bassist, Rob Grill. The iconic "1-2-3-4" count-in before the chorus was sung by guitarist Warren Entner.