Zoe Ball was jokingly scolded by her ex-husband Norman Cook live on-air after she momentarily “forgot” who he was.The broadcaster and DJ, otherwise known as Fatboy Slim, married in 1999 and went on to welcome two children, Woody, 22, and 13-year-old Nelly.However in 2016, the pair announced that they had “come to the end of our rainbow” after 18 years of marriage.The former couple are still on good terms, so much so the musician appeared on her BBC Radio 2 breakfast show on Friday ahead of his set at this weekend’s Glastonbury.