How big were Simon & Garfunkel? The Beatles are often compared to the Rolling Stones, the Beach Boys and the Monkees for different reasons. The former because they are the leading symbols of the British invasion. The second due to them being their main challengers artistically speaking. Then the latter since they were created as an American answer to them which in all fairness was insanely massive in 1967. In terms of global success and sales though, the closest to the fab four from 1966 to 1970 was none of them but instead the aforementioned duo Simon & Garfunkel.