In July of 1958, nearly 20 years into her career, 38-year-old Peggy Lee scored her 48th Billboard hit with “Fever.” Known for her sultry delivery, impeccable timing, and bluesy intonation, Lee had already earned the respect of jazz greats while her commercial hits won her legions of admirers. Versatile and prolific, she has become one of the swing era’s most recognizable voices, famous for such hits as “Why Don’t You Do Right” and “It’s a Good Day,” the latter being one of her many original compositions. [Source: Zenobia Ortis, UDiscoverMusic]