Jennifer Lawrence was once sick in front of Miley Cyrus.

The Oscar winning actress was at a post Oscars celebration thrown by Madonna's manager in Hollywood in March, where she ended up vomiting, while Miley - a seasoned veteran of hard partying - looked on.

"I've never gone out after Golden Globes or Oscars or anything. I'm just so sick of people by that point. I'm like, 'Ugh, god!' But this time I was like, 'I'm going out.' And I puked. There's this big fancy party, this Guy Oseary and Madonna party - if you get invited, you're like, you know, super-important. And I puked, on his porch. I was in such bad condition, and I look behind me while I'm puking, and Miley Cyrus is there like, 'Get it together,'" she told talk show host Seth Meyers.

The American Hustle star blames her friend Laura - who she took to the Oscars with her - for being a bad influence on her. "She was a terrible influence on me. We left and then 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!'" she added.