Fresh out of rehab, Lohan arrived at Pure Nightclub at Caesars Palace at 12:40 a.m. and was seen drinking Red Bull in the VIP section before the curtains were drawn on her party.
It was a spur-of-the-moment trip and she wasn't paid for the appearance, Vegas Confidential learned.
After arriving on a private plane about 10 p.m., she was taken on a shopping trip to the Forum Shops at Caesars before changing clothes and going to Pure.
Lohan periodically came out from behind the curtained-off stage to acknowledge the crowd on a microphone. She moved her party to the VIP Red Room VIP for an hour before returning to the main stage. She interacted with Lauren Conrad of "The Hills" and Brody Jenner, who had reportedly recently broken up. Illusionist Criss Angel joined Lohan's group after 3 a.m. and they were all seen leaving about 3:45 a.m.
Lohan and Angel held hands frequently, including on their way out of the club. Angel was most recently romantically linked to Cameron Diaz.
The party briefly moved upstairs to Lohan's suite before she and her group were seen leaving with Angel in his black Rolls Royce. They returned to Caesars about an hour later, when Angel dropped them off.
