Mary Wells was an American singer widely recognized for her work in Motown during the early 1960s. Known for her smooth, sultry vocals, she played a significant role in establishing Motown's signature sound and popularizing soul music. Wells' biggest hit, "My Guy" (1964), written and produced by Smokey Robinson, was a key factor in her rise to fame. Despite her early departure from Motown, Wells' impact on the label and her contributions to the music industry remain an important part of her legacy.