Kylie's Waist

An odd topic of controversy - she denies her waist is 16" - which is good, since she'd be a Cirque d' Soleil preteen freak of nature if it was. I just hope the corset is comfortable and aids her singing. And how is the corset made? And what happens if it breaks down on stage? And did it really cost thousands of pounds? And why don't women wear corsets more often these days?