Vance Powell produced many musical acts, including the lead singer and guitarist of duo The White Stripes.  What is the name of the lead singer?
Jack White John Anthony "Jack" White (né Gillis; July 9, 1975) is an American musician, singer, songwriter, record producer and actor. He is known as the lead singer and guitarist of duo The White Stripes. He has also had success in other bands and as a solo artist. On April 24, 2012, White released his debut solo album, "Blunderbuss". His second studio album, "Lazaretto", was released on June 10, 2014. Both received wide commercial and critical acclaim.
George Harrison George Harrison, {'1': ", '2': ", '3': ", '4': "} (25 February 1943 – 29 November 2001) was an English guitarist, singer-songwriter, and producer who achieved international fame as the lead guitarist of the Beatles. Often referred to as "the quiet Beatle", Harrison embraced Hinduism and helped broaden the horizons of his fellow bandmates as well as their American audience by incorporating Indian instrumentation in their music. Although most of the Beatles' songs were written by John Lennon and Paul McCartney, most Beatles albums from 1965 onwards contained at least two Harrison compositions. His songs for the group included "Taxman", "Within You Without You", "While My Guitar Gently Weeps", "Here Comes the Sun" and "Something", the last of which became the Beatles' second-most covered song.