Josh Strickland and Holly Madison at Gallery Nightclub.

Last weekend was full of celebrity appearances at Gallery Nightclub inside Planet Hollywood Resort when Holly Madison, Mike “The Situation” Sorrentino and Aimee Teegarden partied at the enticing venue.

Holly Madison was in high spirits as she spent her evening celebrating the DVD release of seasons 1 and 2 of “Holly’s World” at Gallery Nightclub. The “Peepshow” headliner and E! reality star looked stunning dressed in a gorgeous black lace Botega Venetta cocktail dress paired with Christian Louboutin heels. Joining her for the jubilant celebration was co-star Josh Strickland looking dapper as ever in a custom-designed jacket, Ben Sherman dress shoes and David Yurman accessories.

Madison not only celebrated her success of the DVD release, but she also presented Nichole Lee a lobster birthday cake for her 21st birthday. Lee was previously given a makeover by the Playboy Bunny herself on “Holly’s World.” She was surprised by the fun and friendly crustacean-inspired cake as the deejay announced her birthday playing 50 Cent’s “It’s Your Birthday,” while club-goers sang “Go Shorty!”

Madison and her entourage continued to dance the night away in the exclusive VIP section in front of the deejay booth while sipping on Grey Goose cocktails. They enjoyed the energy of the crowd as the deejay played club bangers like “Teach Me How to Dougie” by Cali Swag District mixing it up with old-school classics like “This is How We Do It” by Montell Jordan.

Mike “The Situation” Sorrentino celebrated the launch of his signature Sugar Factory Couture Pop and “Friday Night Lights” star Aimee Teegarden celebrated her birthday at the luxurious nightclub over the weekend, as well.

The Situation, rocking an Italian flag-inspired track jacket, jeans and red shoes, was surprised with a three-tier red, white and green cake covered in his new signature pop as he partied with friends and family in his lavish VIP booth.

Aimee Teegarden, looking gorgeous in a black party dress, revved up the crowd by dancing and interacting with partygoers as she celebrated her birthday with friends. At the peak of the night, the “Scream 4” star was surprised with a three-tier light blue birthday cake presented by the club’s beautiful Pussycat Dolls.

Click on the photos below to enlarge.

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