Britney Spears is getting married! Her talent manager and agent beau Jason Trawick popped the question on his 40th birthday last week with a round white diamond ring featuring 90 small round diamonds along the band, a design by celebrity jeweler Neil Lane, People reports. This weekend, she showed off her new sparkler at her fiance's Las Vegas birthday bash. "Tonight was one of the most magical nights of my life," Spears Tweeted after the party. "Such an amazing time with my new fiancé and our closest friends and family. #Blessed." Congrats to the happy couple!

Plus, see more stunning celebrity engagement rings in the gallery now!

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