Alesha Dixon is a replacement judge for what past judge born on 22 May 1943? 
Strictly Come Dancing (series 7):  Series 5 winner Alesha Dixon joined the judging panel as a replacement for Arlene Phillips. Arlene Phillips: Arlene Phillips, CBE (born 22 May 1943) is an English choreographer, theatre director, talent scout, television judge and presenter, and former dancer, who has worked in many fields of entertainment.
Arlene Phillips