Picture - American Idol, ABC and Abc Studios

"I work out four times a week, cycling, swimming and running because I want to save me (sic) joints... The benefits of exercising, the most important thing is mentally. It just makes you feel great. If I don't work out for six days, I go downhill, I get depressed... (For breakfast) I eat porridge and I have sardines on toast. It's the fish oils. Sardines are so good for you." Veteran rocker Rod Stewart has left his wild days behind him and adopted a healthy diet and lifestyle plan.