Britney Spears: 'Britney Jean' Record Release Party!

Britney Spears dons a little black dress while celebrating the release of her Britney Jean album at Planet Hollywood Resort & Casino on Tuesday (December 3) in Las Vegas.

“In Vegas! Celebrating #BritneyJean & #PieceOfMe with my new Vegas family. :),” the 32-year-old entertainer tweeted earlier in the day.

PHOTOS: Check out the latest pics of Britney Spears

If you haven’t already, go buy Britney‘s new album Britney Jean now!

In case you didn’t know Britney‘s Vegas show Piece of Me will debut on Friday, December 27!

FYI: Britney is wearing a Antonio Berardi dress and Saint Laurent shoes.

25+ pictures inside of Britney Spears attending the Britney Jean release party in Las Vegas…