Gladys Knight & the Pips company with members of Patten's family until his death from congestive heart failure in Detroit on December 24, 2015. Two years prior, Guest and his sister, Dame Dhyana Ziegler, PhD, released his autobiography, "Midnight Train FROM Georgia: A Pip's Journey" (Branden Books, Boston, MA, USA), about his life and career. In 2007, Bubba Knight and Guest, along with a third man, Neil Taffe (one of Gladys Knight's background singers), appeared in a commercial for Geico. In 1997, original Pips member Eleanor Guest died of heart failure. Langston George died on 19 March 2007 from congestive heart failure. Bubba Knight still
Backing vocalist and even developing highly complex harmonies and arrangements. When they perform live, they may have backing vocalists who impersonate their voices. Some bands use backing vocals in order to contrast with the lead singer who may be performing an unusual vocal technique. For example, Brian "Head" Welch, the lead guitarist of the band Korn, performed backing vocals on several songs, and notably on the song "Ball Tongue", he screams the chorus while lead vocalist Jonathan Davis sings incomprehensible scat vocals. Similarly, the Canadian deathcore group Despised Icon uses two vocalists, one performing screams and another performing low, growling death grunts