SECRET FROM SIN CITY

BODYGUARDS TELL ALL ABOUT LAS VEGAS' PRICIEST RESIDENCIES!

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From shocking affairs, Kevin Hart's cheating scandal to quickie weddings Britney Spears' 56-hour marriage celebrities have been known to go wild in Sin City. (Mario Lopez even confessed he had a one-night stand with a "mega pop star" there, circa 2008.) And when music stars hit the town for a year-long residency, all bets are off! Even normally well-behaved performers "are known to go a little off the rails," a source tells In Touch. "The casinos make sure they have security to keep them safe, but the bodyguards see everything- and what happens in Vegas doesn't always stay there!" In Touch digs up all the drama in the desert...

ADELE: DIVA DEMANDS!