Who could have ever imagined that Lady Gaga and Lindsay Lohan were this close?

Mother Monster had a sleepover with Lindsay and photographer Ellen von Unwerth at Lindsay's frequent hangout, the super-exclusive Chateau Marmont in West Hollywood earlier this month and now she's sharing some photos from the girls' night out.

Like any good sleepover, the girls obviously played dress-up, Lindsay sporting a fur coat in some photos and Lady Gaga wearing a shiny tiara and jewels. "I love to stay up late and take pictures of beautiful celebrities," Gaga writes in a caption for one of the three photos she posted on her website LittleMonsters.com.

But the two's surprising friendship isn't as random as one might speculate. Mother Monster just announced that she'll be making her film debut in Robert Rodriguez's "Machete Kills", and as we all know Lindsay starred in the original 2010 film "Machete".

What do you think of Lindsay Lohan's friendship with Lady Gaga?Are you shocked?

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