@ The Last Song:

The only way she would go broke is if she were to spend like a lunatic and make incredibly stupid business decisions. You would have ZERO excuse to be worth 40-60 million dollars and not make it last a lifetime, then leave some in your will for your kids. People who have just a fraction of Christina's net worth have no problem making their wealth last them a long time, they spend responsibly and invest wisely. You don't need to be a penny-pincher to keep money in your bank account, you just need to be smart.