Jennifer Lopez  and Casper Smart made a stylish appearance at Hakkasan Nightclub's grand opening at the MGM Grand in Las Vegas on Saturday. Jennifer stunned in a clingy little black dress while her boyfriend rocked a bright red blazer on the carpet. Inside the club, the duo mingled with Vanessa Hudgens , her boyfriend, Austin Butler, and dancer Cheryl Burke, while other celebrity attendees like Glee's Mark Salling , birthday boy Pharrell Williams, and Paris Hilton  spent the night listening to Calvin Harris DJ the event.
Over the weekend, J Lo had more than just Sin City fun on her mind since her son, Max Anthony, got stitches  for a minor chin injury while in LA with dad Marc Anthony . J Lo addressed the situation on the red carpet, saying, "Of course I was freaking out, but he was fine. He said it tickled." Back on the work front, J Lo is prepping to launch her next single, "Live It Up," with Pit Bull on May 8. In addition to new music, J Lo may be returning to TV after rumors surfaced earlier this month that she'll return to American Idol's judging panel as a replacement for Mariah Carey . Producers have denied the replacement assumptions, but no comments have been made regarding whether Jennifer will return to the show next season.
Jennifer Lopez  and Casper Smart arrived at Hakkasan's grand opening in Las Vegas.
Jennifer Lopez  rocked a little black dress to Hakkasan's nightclub opening at the MGM Grand.
Jennifer Lopez  and Casper Smart got close on the red carpet at Hakkasan's nightclub opening.
Jennifer Lopez  laughed on the red carpet at the grand opening of Hakkasan in Las Vegas.
Jennifer Lopez  and Casper Smart attended the Hakkasan grand opening in Las Vegas on Saturday.
Jennifer Lopez  mingled with guests inside the nightclub.
Jennifer Lopez  walked the carpet at the Hakkasan grand opening in Las Vegas.
Pharrell Williams attended the Hakkasan nightclub grand opening in Las Vegas.
Vanessa Hudgens  and her boyfriend, Austin Butler, arrived at the Hakkasan grand opening in Las Vegas.
Mark Salling  attended the grand opening of Hakkasan in Las Vegas.
Tiesto arrived at the nightclub Hakkasan's grand opening at the MGM Grand in Las Vegas.
Calvin Harris deejayed the grand opening of Hakkasan in Las Vegas.