LiLi's 'encounters' frenemy Paris Hilton at Lady Gaga's ball night

New York, Sept 17 (ANI): Lindsay Lohan freaked out when she recently bumped into her friend turned foe Paris Hilton at Lady Gaga's masked ball night, it has been revealed.

The American actress came from the sets of "Scary Movie 5" in Atlanta to New York in order to attend the event at the Guggenheim Museum

Lohan was shocked to see Hilton, as she didn't expect her at the event.

"Lindsay freaked out when she saw Paris," the New York Post quoted a spy as saying.

"Neither knew the other would be there. And when Lindsay first saw Paris, she just stepped back with these big eyes. She was shaking her head and kept repeating, 'No, no, I can't," the spy added.

A source said that Lohan refused to get pictures clicked with Paris Hilton at Gaga's event.

According to reports, Lohan arrived at the event "very quietly," while Hilton "marched in and tried to push her way through the crowd to Gaga," only to turn around when she realized no one was moving out of her way when she wanted to get to the singer.

Lady Gaga reportedly hugged Lohan, who became very good friends with her over the summer during a sleepover at the Chateau Marmont in LA. (ANI)