But what happens when she loses her security hair curtains?
That's just what happened on Tuesday when she stopped by her native Australia's Sunrise morning show for a performance.
When the wig couldn't be found, she just had to improvise with a kind of colorful tinsel-y headdress!
Good thing she has such a festive sense of humor about the whole thing! Watch her laugh off the silliness, perform Chandelier, and explain WHY the wig in the first place (below)!