Britney Spears's 27th Birthday Bash

Britney Spears parties at Tenjune for her 27th birthday in New York City on Tuesday night.

Heidi Klum, Lance Bass, Robert Buckley and many other celebrities were in attendance for the party to celebrate Brit‘s birthday.

In an appearance on Good Morning America, Britney said her 27-city tour will open March 3 in New Orleans.

Britney Spears was the most popular search term on Yahoo for the fourth year in a row, for her seventh time topping the list.

15+ more pics inside of Britney Spears‘ 27th birthday bash…