Lady Gaga's performance art took a bizarre turn Thursday night.

The 27-year-old singer played on the Doritos #BoldStage in Austin, Texas. When Gaga performed her song "Swine," a woman shoved a finger down her throat and vomited all over the pop star. The musician continued to bang away at the drums as the woman spewed a green, slime-like substance.

Gaga performed for 2,000+ Little Monsters during her first-ever SXSW performance. Fans were granted admission only after they proved themselves by completing a Doritos Bold Mission. The event aired on Fuse and will be rebroadcast on March 29. It celebrated Gaga's Born This Way Foundation.

Hours earlier, the "Applause" singer appeared on ABC's Jimmy Kimmel Live!, wearing a dress made entirely of coffee filters. "I am recycling. You can do anything with your crazy ideas if you put your mind to it," she said. "This is a Gareth Pugh dress. He is a wonderful designer and he sent it to me."

Lady Gaga

Kevin Mazur/WireImage

Gaga insisted she wasn't trying to outdo her past looks. "I just really wanted to be comfortable for the interview," she said of the poufy dress, oversized hat and platform boots. "They are my hiking shoes."

There was another reason the "Do What U Want" singer wore the look: "I am really fat right now," Gaga said, "because I have been eating BBQ all week. I had some from Stubb's because I am playing the Doritos Bold. We had some Salt Lick, too. Also, if I see any meat on the street, I will just eat it."

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Lady Gaga, Jimmy Kimmel Live

ABC/Randy Holmes

The five-time Grammy winner tried to go incognito earlier that week. "I have had a really great time. I have been going out, really, every single night and seeing as much music as I can," Gaga revealed. "The thing I have missed the most is seeing live music and going to bars and wandering around unnoticed. To be honest, I don't remember a lot of what happens in the locations, but I know I was there. I know I was there, I know there was great music, but I don't remember exactly what happened."

Gaga will be a keynote speaker Friday at SXSW with Fuse's John Norris, but admitted that she hadn't written her talk yet. "I don't really have anything particular planned that I want to come across during the speech. I just rally want the audience to leave feeling with a sense of a love for music, experiencing live music, for creative people to want to go home and play their instruments and write poetry and keep pursuing their dreams. I really think that's what's at the heart of this festival and that would be the best contribution I can make. The most amazing thing for me to witness is watching these little bands on stage and going, 'Oh my, gosh, this is how I started.' I must've played over 1,000 bars/clubs."

Lady Gaga

Kevin Mazur/WireImage

The "Just Dance" singer also talked about becoming the first person to perform in outer space in 2015. Gaga will sing with Zero G Colony on a Virgin Galactic flight.

"Did you see the movie Gravity?" host Jimmy Kimmel asked. "That doesn't seem like a good idea to me. There's a lot of space junk flying around up there, and you never know what could happen."

"I have some really amazing fans and because of them, I'm just not really afraid of anything," Gaga explained. "My fans are exactly what make me feel fearless. It's because we all think the same away, we are all excited about music, about creativity, about compassion, and when we come together, great things can happen. So I know that when I'm up there, they'll be up there with me."

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