Lindsay Lohan’s Birthday!

It’s Lindsay Lohan’s Vegas Birthday Bash and she’ll twitpic if she wants to!

Although her big 2-3 isn’t till July 2nd, Lindsay never needs an excuse to party!

She celebrated her birthday and the launch of her Sevin Nyne tanning mist poolside at the MGM Grand’s Wet Republic on Saturday afternoon in sunny Las Vegas. Music was provided by  DJ Steve Aoki, not her on-again/off-again GF Samantha Ronson.

Of course, she took to her twitter to keep her loyal followers updated!

In one picture, she strikes a sexy pose, wearing a fedora and oversized shirt, saying “MJ was playing when this was taken, I’m not that much of narcissist.”

The other shows Lindsay and three of her pals hanging in a daybed by the pool, as she rocks her bikini and signature finger-in-mouth look.