Holly Madison poses with Baby Carlos from "The Hangover."

Holly Madison, Vegas’ favorite showgirl and headliner of Planet Hollywood Resort’s “Peepshow,” celebrated the holiday weekend on Saturday at Flamingo’s tropical resort GO Pool.

She spent the afternoon dancing in the deejay booth facing the cascading waterfall and waving to the crowds partying in the pool lagoons. Pool-goers had the opportunity to take photos and get autographs from Madison, star of E!’s hit show “Holly’s World” and newly acclaimed author of “The Showgirl Next Door: Holly Madison’s Las Vegas.”

In true Las Vegas fashion, Madison sipped on cocktails and champagne in the cabanas and relaxed with Caesars Entertainment’s own “Baby Carlos” from the blockbuster hit “The Hangover” before rushing off to Planet Hollywood Resort for her “Peepshow” performance.

Click on the photos below to enlarge.

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