This just in. The Haus of Gaga have devised a floating stage out of a glacier. The Queen of Pop is set to perform for 10,000 polar bears and seals in Antacrtica in 2016.
Metallica are actually playing a concert in Antarctica so it's not impossible for people to perform there. And seeing as Gaga is going to space I wouldn't put it past her to play a few shows in Antarctica.