Chris Martin "doesn't need" to eat because he has music.
The Coldplay frontman has been fasting in a bid to protect his voice but insists he hasn't suffered for it because he is feeling nourished by the group's upcoming new album A Head Full of Dreams.
He said: "I haven't eaten today. I don't need to eat. I've got the power of a new record in me!"
The 38-year-old rocker also spoke of his belief in always "rewarding" buskers because he appreciates their talent so much.
Handing £20 to one street musician, he said: "You've always got to reward a busker. That's one of my commandments.