If you're interested in where the Britney Spears circus (Ha! the show is called Circus, you see....) is going to land then you might want to click through and check out the tour dates.
The show is currently in Europe, after the spring part in hte US, and it will be returning to hte US for the latter part of the summer.
If Britney Spears miming to her records while gyrating wildly is what interests you then do indeed check it out. Or, you can if you wish, use that list as a guide to where and when to avoid.