Lonnie McIntosh (July 18, 1941 – April 21, 2016), better known by his stage name Lonnie Mack, was an American rock, blues and country singer-guitarist. He began performing professionally in the mid-1950s and remained active as a performer into the early 2000s. His recording career spanned the period 1958 to 1989. Despite historically significant recordings and several brushes with stardom, Mack never became a major commercial artist. However, he was a "ground-breaker" in virtuoso rock guitar soloing and his innovations broadly influenced the emergence of the electric guitar as a lead voice in rock music. In his 1963 hit singles, "Memphis" and "Wham!", he "attacked the strings with fast, aggressive single-string phrasing and a seamless rhythm style", to produce a previously-unheard sound that was "savagely wild [but] perfectly controlled". These and other early Mack recordings formed the leading edge of the blues-rock lead guitar movement of the 1960s and have been called a "prototype" for the southern rock genre of the 1970s. Prominent guitarists who have identified him as a major influence include such diverse stylists as the late Stevie Ray Vaughan (blues-rock), Jeff Beck (jazz-rock), Dickey Betts (southern rock), Ray Benson (western swing), Bootsy Collins (funk), and Ted Nugent (hard rock). He was also highly regarded as a blue-eyed soul singer. Crediting Mack's vocals and guitar solos alike, music critic Jimmy Guterman ranked Mack's first album, "The Wham of that Memphis Man" (1964), No. 16 in his book The 100 Best Rock 'n' Roll Records of All Time.