Jane Krakowski is so excellent. Notice that there’s a lot she has to achieve in a short time here, while giving the appearance of being careless and impetuous. Every time I watch this I can’t help getting nervous that she won’t untangle herself in time or that she will somehow not be attached to the sheet properly but - of course - she always does. Her control in being able to hold a note while doing a backwards roll or being flung upside down is magnificent. And, as you’ll see just before the end, she really commits to it.