Britney Spears announced/confirmed on Good Morning America today what we already knew ... she's headed to Vegas!

Brit's "Piece of Me" show will be staged in a custom-built theater at Planet Hollywood and will launch December 27. The 50-show run will follow the release of Spears' yet-unnamed album on December 3. Brit will rake in a reported $310,000 per show and tickets will range in price from $59-$179. You can even buy a meet-and-greet package for $1500 -- bargain!

The star transported thousands of fans to the middle of nowhere in the desert, while she choppered out (see her Twitpic below), making a dramatic entrance before her interview with Sam Champion via satellite.

Brit said, "I love Vegas. The energy is really good. I'm going to do my greatest hits, but I'm going to have to put some of my new material in to keep it fresh."

During her sit down, Britney also weighed in on Miley Cyrus controversial performance at the MTV Video Music Awards, telling GMA, "I think anytime you do a performance that is that memorable you're going to have criticism I think she's doing her thing she's being herself so I give props to her."

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