Simon Cowell's new Netflix docuseries, The Next Act, opens with the music mogul getting what his partner, Lauren Silverman, describes as "the longest haircut ever" inside their sprawling London home. Just when she thinks it's finally over, an irritated Silverman, 48, walks back into the bathroom and asks Cowell, 66, why he's getting his "makeup done too," to which he deadpans, "To look handsome.