Nicole Kidman believes her children's "life force" keeps her feeling young.
Kidman has two daughters, Sunday, six, and Faith, three, with her husband Keith Urban and she feels energised by them all the time.
She said: "There's something true about their life force. Children keep you young, they keep you engaged and they bring joy ... It's like we always dance at Keith's shows - Sunday and Faith are there and we'll be dancing side stage."
Nicole and Keith, 46, have been married now for eight years and she claims the secret to the success of their relationship is that they always make each other their number one "priority" in their lives.
In an interview on UK radio station Magic FM: "We stay really tight, we're very, very close. We have friends, but our priority is each other - we both grew up with parents who are like that."
Even though Nicole and Keith are often forced apart due to work commitments they make a rule to always speak to each other at least 10 times a day.
The 'Before I Go To Sleep' star added: "We're crazy. We'll speak 10 times a day. After nine years together we're both so grateful to have somebody that we not just love but who we like as well. It's a great combo. We all know what it's like to love someone and not really like them."
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