It's only been 4 shows since Briney first debuted her new Las Vegas residency tour "Piece of Me" and it's already out sold Celine, Elton, and Shania! This is based mostly on the numbers shown from Stubhub, but with shows available until September, this may keep up for the rest of the year.

We're not that surprised with the news considering all of the positive reviews that the show has gotten. Britney is back in proper form and she's showing her audience that she's still the queen of pop!