CHEST: SIMON COWELL
CHEST: Simon Cowell from The X-Factor
Simon Cowell's renowned for his tight T-shirts (and never-changing hairstyle), but even though we rarely see him without a shirt on, the secret for how he fills out his upper-half has been revealed. To keep that fabric clinging to his physique, The X Factor judge follows a training regime that involves doing exercises both at home and in his office. Most importantly, however, he never goes a day without doing at least 500 pushups — the key to maintaining those famous pecs.