Making the most of her trip to Sin City, Lindsay Lohan was busy partying at Wet Republic pool in Las Vegas on Saturday (June 27).

Joined by family and friends, the "Georgia Rule" actress took to the VIP Cabana as she smoked on cigarettes and sipped on a drink while switching from one swimsuit to another.

Held as a launch party for her Sevin Nyne tanning mist as well as an early birthday party, Miss Lohan seemed to be thoroughly enjoying herself while grooving to the sounds of DJ Steve Aoki.

When her DJ pal played Michael Jackson, LiLo even struck a quick "King of Pop" pose as a tribute to the fallen King of Pop.

Enjoy the pictures of Lindsay Lohan celebrating in Las Vegas (June 27).