Her bodyguard Peter, I believe his name is. I swear he was a ex hit man, he like ran on stage, then was jumping off stage, jumping over things to get to her, they should remake the bodyguard about him and Gaga.
The crowd loved it, as they always do. I love how much she trusts her fans, even if it's kind of dangerous for her to do so. No other popstar would dare, tbh!