Boyle has called Cowell the biggest inspiration in her career and the best boss in the world, crediting him with changing her life. Viewers can also get a glimpse at their relationship in the 2013 ...

For instance, just before Boyle sang “I Dreamed a Dream” for her audition, Cowell asked her to share her age. “I’m 47 — and that’s just one side of me!” she said, shaking her hips. As she belted out ...