 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. Tina Turner: Tina Turner (born Anna Mae Bullock; November 26, 1939), is an American-born Swiss recording singer, songwriter, dancer, actress, and author. Tina Turner:  Born and raised in the Southeastern United States, Turner relinquished her American citizenship after obtaining Swiss citizenship in 2013.
citizenship