Lonnie McIntosh, known as Lonnie Mack, was an American singer-songwriter and guitarist. He was influential in the development of blues rock music and rock guitar soloing.
Mack emerged in 1963 with his breakthrough LP, The Wham of that Memphis Man. It earned him lasting renown as both a blue-eyed soul singer and a lead guitar innovator. The album's instrumental tracks included two hit singles, "Memphis" and "Wham". In them, Mack, using "top-quality technique" and "pristine" phrasing, added "edgy, aggressive, loud, and fast" melodies and runs to the predominant chords-and-riffs pattern of early rock guitar. These tracks raised the bar for rock guitar proficiency, helped launch the electric guitar to the top of soloing instruments in rock, and served as prototypes for the lead guitar styles of blues rock and Southern rock that soon followed.
Shortly after the album's release, however, the British Invasion hit American shores, and Mack's recording career "withered on the vine". He regularly toured small venues until 1968, when Rolling Stone magazine rediscovered him, and Elektra Records signed him to a three-album contract.