In an April interview that finally aired this week, the actress spoke about her experience at the 2014 Academy Awards — including meeting Brad Pitt, and that incident with Miley Cyrus.
Jennifer, 23, said her best friend Laura was too blame for her boozy night out.
"I took her and she was a terrible influence on me," the popular star told host Seth Meyers. "She was like, 'Meet me at the bar'. So I snuck out and I was like, 'Oh my god, I can't do this!' And she was like, 'You can do whatever you want!
"We ran into Brad Pitt," Jen continued. "And she was like, 'Get Brad Pitt over here!', and I was like, 'I can't do that!' And she was like, 'Yes, you can!' So what was a girl to do?
"I just went, 'Hey Brad Pitt!' He came over. He smelled like sandalwood. It was unbelievable!"
Jennifer said she had a great night at the Oscars as she ran into Brad Pitt, who "smelled of sandalwood"
Jennifer then explained that she doesn't usually attend awards afterparties because she's "just so sick of people by that point".
"But this time, I was like, 'I'm going out,'" she said, before explaining how she became unwell by the end of the night.
The Oscar-winner continued: "There's this big fancy party, this Guy Oseary and Madonna party — if you get invited, you're like, super-important. And I puked on his porch.
"I was in such bad condition, and I look behind me... and Miley Cyrus is there like, 'Get it together.'"