Newly-engaged Britney Spears chose fiance Jason Trawick's fortieth birthday party in Las Vegas to show off her engagement ring - and her curves in a nude figure-hugging Herve Leger bandage dress. The party was held at the Planet Hotel to celebrate the engagement two people. Britney Spears arrived in Las Vegas with Jason on the direct placement Planet 3,100-foot luxury hotel suite, this suite designed by top designer Jonathon Adler, known to the honeymoon suite. Room contains two bedrooms, dining room, living room and Jacuzzi, the window that overlooks the hotel's Eiffel Tower in Paris and the famous Bellagio fountain.

Britney Spears, after a short rest in the room, wearing a Herve Leger skirt nude color, wore huge by Neil. Even the design of the wedding ring appearance by the Robert Earl, chairman of the hotel to prepare for their engagement party.

Britney confirmed her third engagement by revealing her new ring at Chateau Night Club on Saturday night. The pair looked really happy as they posed playfully together for photographs.

According to insiders the "People" magazine broke the news; "Hotel Jason prepared a large cake and small party, as Britney Spears would like to quickly take care of the children sleep upstairs." After the party, Britney Spears and Jason went to the Chateau Bar, VIP seats, and their friends with the carnival. Insider said: "Britney is very excited, has been holding Jason's hand." Saturday morning, Britney Spears on Facebook says: "Tonight is my life the most wonderful night. And my fiance, family and friends is great. "

On Friday, Britney inferred that ex-manager Jason had popped the question by tweeting: "OMG. Last night Jason surprised me with the one gift I've been waiting for. Can't wait to show you. SO SO SO excited! Xxo".

She then took to Twitter again on Saturday night to reveal that the pair were about to catch a plane to Vegas for Jason's birthday party, where she revealed her engagement ring.