Lady Gaga has revealed that her current world tour is so gruelling, she is throwing up during performances.
In a Tweet to fans, she revealed that her Tokyo show was the first that she had performed without vomiting.
"Yes Tokyo! Tonight was the first BtwBall that I didn't puke during show. (yes its that hard) (sic)," she Tweeted, before adding: "Tonight was happiness, joy, gratitude. I'm the lucky one Japan. You are so special."
Lady Gaga previously caused controversy when she suggested she was starving herself ahead of her current tour, but later revealed she was in fact on a special diet in preparation.
Her 'Born This Way' ball arrives in the UK on 8 September, 2012. Tickets are on sale now. For more information, visit Gigwise Gig Tickets.