Donna Summer's title as the "Queen of Disco" wasn't mere hype -- she was one of the very few disco performers to enjoy a measure of career longevity, and her consistent chart success was rivaled in the disco world only by the Bee Gees. Summer was certainly a talented vocalist, trained as a powerful gospel belter, but then again, so were many of her contemporaries. Of major importance in setting Summer apart were her songwriting abilities and her choice of talented collaborators in producers/songwriters Giorgio Moroder and Pete Bellotte, which resulted in a steady supply of high-quality (and, often, high-concept) material. But what was more, few vocalists could match the sultry, unfettered eroticism Summer brought to many of her best recordings, which seemed to embody the spirit of the disco era perfectly. The total package made Summer the ultimate disco diva, one of the few whose star power was even bigger than the music.