sentences:  In December when the tour reached Brisbane, Cotton was injured in an assault by street toughs.Early in 1970 Zoot finally discarded their pink outfits and attempted to shift their image and music towards heavier rock from the earlier teeny-bopper pop.In December that year, they released their most successful single, "Eleanor Rigby", which was a hard rock cover version of The Beatles' ballad and by March 1971 it had peaked in the top five.