Lindsay Lohan Models Bikinis By The Pool At Early Birthday Bash

It's Lindsay Lohan's birthday and she'll change her outfit FIVE times if she wants to.

The troubled actress celebrated turning 23 (she doesn't look a day over 45!) next month with a premature party around the pool at Wet Republic in Las Vegas.

But the bash – which included birthday cake that the skinny star actually ate – turned into a fashion show as Lindsay flaunted her bony frame in a number of midriff-baring outfits.

At one point, she pulled her fedora down over her eyes and mimicked a trademark Michael Jackson pose.