Omnia Nightclub
Yum! Katharine McPhee sneaks a bite of her birthday cake while celebrating at Caesars Palace.
Tao Beach
Brody Jenner parties with a few pals at The Venetian hot spot.
Omnia Nightclub
Girls night out! Meghan Trainor and some friends hit the new celeb nightspot at Caesars Palace.
Marquee Dayclub
Selfie time! Kourtney Kardashian hosts a preview pool party at The Cosmopolitan.
OMNIA Nightclub
After grabbing dinner at Hakkasan Restaurant, Miley Cyrus meets up with Questlove for a party at the Caesars Palace hot spot.
Justin Bieber's 21st Birthday Party
The singer rings in his milestone birthday at the Omnia Nightclub.
Thunder From Down Under
Paris Hilton hangs with a dancer from the male strip show during her cousin's bachelorette weekend, which also included seeing Britney Spears' Piece of Me show and partying at Beachers Madhouse.
Valentine's weekend party at 1 Oak
Donnie Wahlberg and wife Jenny McCarthy pack on the PDA neart the entrance to the club at the Mirage Hotel & Casino.
Madame Tussauds Las Vegas
Ricky Martin takes a selfie with himself his new wax fiigure, which will eventually be on permanent display at Madame Tussauds Orlando.
Steve Wynn's ShowStoppers
Michael Shannon and Imogen Poots pose with castmembers and ShowStoppers director Philip Wm. McKinley after the show at the Encore Theater.
Beacher's Madhouse at MGM Grand
Britney Spears kicks back after a sold-out Halloween show.
1 OAK Nightclub at The Mirage
Nick Jonas and Olivia Culpo celebrate Halloween in cute coordinating costumes.
PINK Nation Crazy For Campus Party
Iggy Azalea is sandwiched between models Elsa Hosk and Rachel Hilbert during the Victoria's Secret bash at the University of Nevada, Las Vegas.
Tao Nightclub
Kim Kardashian celebrates her birthday with sister Khloé Kardashian.
Buca di Beppo Las Vegas
Britney Spears hosts a special dinner for her backup dancers at the Italian eatery.
Hakkasan Las Vegas
Tyler Posey celebrates his 23rd birthday at MGM Grand.
NACS Show
Smokin' hot! Carmen Electra helps launch electronic smoking company Tryst's 2015 collection.
Drai's Nightclub
Nick Cannon deejays and celebrates his birthday at The Cromwell hotel.
XS Nightclub
Mario Lopez celebrates his 40th birthday with wife Courtney Mazza at Encore.
Encore at Wynn Las Vegas
Kary Perry enjoys a late-night snack at Surrender nightclub.
Hakkasan Las Vegas
Nick Jonas celebrates his 22nd birthday alongside girlfriend Olivia Culpo.
XS Nightclub
Bromacne alert! Ed Sheeran puckers up to Niall Horan while partying at the Encore Las Vegas.
Bally's
Laverne Cox hosts the opening of Liaison Nightclub, the first gay nightclub in a Vegas casino.
Encore
Usher and Chris Brown help Jermaine Dupri celebrate his birthday at XS Nightclub.