The sign that you are back in business for good is when you appear live on ’The Late Show’ next to David Letterman. The fact that Britney Spears hasn’t been there form almost three years says a lot. The last time she was on ’The Late Show’ it was when the singer a surprise cameo in November 2006.

The singer has been through a tough period ever since, but since she was invited again, it means Britney is …RE-born to make US happy.

Today, she will deliver one of the show's classic bits: the Top 10 list.

Recently Britney has finished the European leg of her Circus tour and she will begin her concerts in America on August 20.