Amanda Holden quips Simon Cowell used to buy records from own label in a bid to climb the charts

David Walliams playfully jokes Simon Cowell, 62, shed 20lbs with a gastric band

David Walliams fuels speculation Simon Cowell, 62, shed 20lbs with a gastric band

Amanda Holden teases even more daring outfits for BGT live shows: ‘Rubber and latex’