Britney Spears burned up New York City on Tuesday night to celebrate her 27th birthday. I didn't get that much hoopla for my 27th, that's for sure. For Spears' birthday, Manhattan hot spot Tenjune was being transformed into a three-ring circus.

It is fitting that Britney's birthday bash carried that theme to coincide with the release of her latest album, "Circus," that also dropped on Tuesday.

In addition to Britney's mom, Lynne Spears; Ciara, Lance Bass and Jeremy Piven were also spotted at the party.

For more pictures of the Spears birthday bash, check out Micah Jesse's blog.