Britney Spears Debuts Engagement Ring At 'Magical' Vegas Bash

Jason Trawick and Britney Spears celebrate their engagement at Planet Hollywood Resort & Casino in Las Vegas on December 16, 2011 Jason Trawick and Britney Spears celebrate their engagement at Planet Hollywood Resort & Casino in Las Vegas on December 16, 2011

Britney Spears and Jason Trawick jetted to Las Vegas on Friday to celebrate their engagement, as well as Jason’s 40th birthday.

The couple checked in at Planet Hollywood, where the “I Wanna Go” singer soon emerged from her suite for a congratulatory welcome on the hotel’s mezzanine wearing a short, nude Herve Leger dress, with her soon-to-be husband by her side.

Brit and Jason then kicked off their evening with a dinner and sweet treats at Sugar Factory American Brasserie before heading to Chateau Nightclub, where the couple relaxed in their own VIP area and Britney posed for photos showing off her dazzling 3-carat Neil Lane sparkler.

The pop princess seemed to thoroughly enjoy the Sin City festivities, Tweeting, “Tonight was one of the most magical nights of my life” early Saturday morning.

“Such an amazing time with my new fiance and our closest friends and family,” she added. “#Blessed.”

As previously reported on AccessHollywood.com, on Friday, Jason confirmed to Access Hollywood’s Billy Bush that he and Britney will soon be headed down the aisle.

“Yes, we are engaged,” Jason told Billy on Friday.

The 40-year-old added that he is “over the moon, as [is] she.”

Jason revealed he popped the question in a very traditional manner (down one on knee), and added that Britney’s sons, 6-year-old Sean Preston and Jayden James, 5, were on hand to witness the proposal.

Jason initially began working with Britney as her TV manager (while the star was still married to Kevin Federline), a job he gave up in 2009 after their relationship became romantic.

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