N o w - H o l l y w o o d . b l o g s p o t .c o m

As we reported yesterday, Britney Spears will be performing live on Good Morning America December 2 - her 27th birthday - at Bryant Park in New York City.

"It'll be the biggest birthday bash to ever hit morning TV!" a fresh-faced Spears says in a promo for the show - marking her first live appearance since... you know.

For those who can't get enough Britney Spears, here's the promo ...