Chris Martin judges how good his music is on whether his children like it or not.
He said: ''Kids are very honest - if they start singing a song it's because they like it. It's a great gauge.''
Chris, 35, also said his children keep him grounded as no matter how much success he has, he's still got to do the everyday tasks of being a dad.
He told The Sun newspaper: ''When we played Wembley Stadium I was like, 'Wow, now we are big rock stars', but next morning the kids were saying to me, 'Get me some pancakes.'''
Chris has also recently revealed his children are more important than his career and will always come first.
He said: ''Just at the point where you would have got really big egos, we all have these little people who we are all responsible for and they keep us focused on what is really important in life.''
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