Actor Tyler Posey, best known for his role on MTV’s “Teen Wolf,” was spotted dining at Pink Taco at the Hard Rock Hotel with a group of friends on Saturday night.

Mix Master Mike from The Beastie Boys treated the crowd at The Bank at the Bellagio to a special DJ set.

T Pain was at Haze at Aria where he played deejay for the excited crowded. He went on at 11 p.m. and kept the music going until 2 a.m.

Reality star Scott Disick flew into Las Vegas and had dinner at Stack at the Mirage before heading to 1OAK for the Halloween party.

Lead vocalist Adam Lazzara of rock band Taking Back Sunday cooled off at Minus5 Ice Bar at Mandalay Bay over the weekend. 

The Act, the new performance-based nightclub theater by New York nightlife impresario Simon Hammerstein, officially opened its doors Saturday night with a star-studded grand opening celebration.

Model and actress Stacy Keibler hosted Dom Pérignon’s Halloween Masquerade at Hyde Bellagio on Saturday night.

Reality television vixen Jenni “JWoww” Farley celebrated Halloween at Chateau Nightclub at Paris Las Vegas Saturday night.

Recording artist Bruno Mars stopped by Studio at the Palms, the resort’s multimillion dollar recording facility, before meeting with a group of lucky fans from across the United States on Saturday.