Britney Spears has revealed that it was Madonna who persuaded her to take her kids on tour with her.
The pop princess, who is currently on her Circus world tour with sons Jayden James and Sean Preston, said her pal Madonna told her to make her kids proud of her.
Britney told OK! magazing: "When they're adults I want my kids to say 'Mom worked so hard, but she was always there for us."
The Womanizer singer went on: "It's all about history. What we as mothers are doing is creating history with our kids that we can look back on."
Britney went on to reveal that she took ex-husband Kevin Federline on tour with her to look after the kids - at a cost of a whopping $5,000 an hour!