Between Katie White and Jack Bruce, who worked in a larger group (the number of members)?
Katie White: Katie Rebecca White (born 18 January 1983) is a British musician and member of the pop duo the Ting Tings. Jack Bruce: John Symon Asher "Jack" Bruce (14 May 1943 – 25 October 2014) was a Scottish musician, singer and songwriter known primarily for his contributions to the British supergroup Cream, which also included guitarist-singer Eric Clapton and drummer Ginger Baker.
John Symon Asher "Jack" Bruce