Graham Stack  has written and produced hit records for many artists including a singer who relinquished her American what?
Graham Stack (record producer) Graham Stack is an English born record producer and songwriter who has written and produced hit records for many artists including James Arthur, JLS, Kylie Minoque, Take That, LeAnn Rimes, Tina Turner, Girls Aloud, Atomic Kitten, Steps, Westlife, Donna Summer, Rod Stewart, Il Divo and Natalie Cole Natalie Cole.
Gwen Guthrie Gwendolyn "Gwen" Guthrie (July 9, 1950 – February 3, 1999) was an American singer-songwriter and pianist, who also sang backing vocals for Aretha Franklin, Billy Joel, Stevie Wonder, Peter Tosh, and Madonna, among others, and who wrote songs made famous by Ben E. King, Angela Bofill and Roberta Flack.