The production was also given the title of Best Bachelorette Party, naming Spears' music revue the go-to event for soon-to-be brides and their friends.
The "Toxic" hitmaker took to Twitter to show off her new trophies.
"Look what I got over the weekend! Thank you @BestOfLasVegas, my dedicated team & POM crew, @phvegas, and all of YOU!"
Spears, 33, has been performing her "Piece of Me" show since late 2013.
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