Rather infamously, Donna Summer wasn't a fan when she heard the final version of this legendary disco tune. It was one of the earliest big disco tunes to use synthesizer sounds rather than live musicians and is still one of producer Giorgio Moroder's biggest-ever hits. Summer though didn't like the way her vocals had been so sexualized in the final edit. Either way, that didn't stop it from becoming an iconic disco cut that still gets floors in raptures today.