Reality star from CMT hit TV show “Sweet Home Alabama” Paige Duke hosted Country Boys vs. City Guys Party at Vanity Nightclub inside Hard Rock Hotel on Saturday night.

At Marquee at the Cosmopolitan, fashion designer and actress Lauren “Lo” Bosworth from reality show “The Hills” was in the main room taking in the sounds of Benny Benassi on Friday night. 

On Friday night, Perez Hilton celebrated his 34th birthday and the release of Madonna’s new album “MDNA” at Tao at the Venetian. A group of friends, including “Peepshow” headliner Holly Madison, helped him toast the occasion.

Lavo at the Palazzo hosted the final Saturday Champagne Brunch of the season, marking a party-filled fall and winter and making way for the start of pool season. 

At Marquee at the Cosmopolitan of Las Vegas, singer Dev was spotted in the club’s Boom Box Room with friends including DJ Sourmilk on Saturday night. 

Saturday night at Lavo at the Palazzo featured a special appearance by rapper Tyga. After dining at Lavo Italian Restaurant on Kobe meatballs and rib eye, the rapper made his way to the nightclub as the crowd screamed with excitement when they saw him walk in.

On Saturday night, Trey Songz hosted at Tao at the Venetian.

Tonight was the 47th Annual Academy of Country Music Awards at the MGM Grand Garden Arena. Earlier in the night, KISS stole the show, arriving on the red carpet in a monster truck.

Earlier today, Wet Republic at the MGM Grand hosted thousands of bikini-clad revelers and electronic music lovers who headed to the Las Vegas pool party to see global phenomenon Bob Sinclar. The French record producer, DJ and remixer manned the decks and spun to the sold-out crowd at Wet Republic’s first industry house event of the 2012 pool season.