(Wiki: This aria poses some difficulties. Technically, it is among the most fiendishly challenging coloratura soprano arias. If sung as written throughout, there are three high E-flats, two staccato and one sustained; there are also numerous uses of high C and D-flat. Some of the florid passages are very intricate, calling for marksmanship of the highest order. Theatrically, it demands an elaborate comic staging, in which Cunegonde adorns herself with jewellery while singing and dancing around the stage (much as does Marguerite in the “Jewel Song” of Gounod’s Faust), and has a satirical quality that is a challenge to perform.)
Observe how bravely I conceal The dreadful, dreadful shame I feel Ha ha ha ha!