How does the oxymoron "rehearsed spontaneity" affect the meaning of this sentence? the pop singer shook hands and signed autographs, her smiling, rehearsed spontaneity winning her even more fans

An oxymoron is a figure of speech in which two terms with opposing meanings (they contradict each other) are used together. This figure is often used for dramatic effect, to attract the reader's attention and make them think or laugh. In the provided passage, the oxymoron "rehearsed spontaneity" has as purpose to make the reader think of the meaning of the phrase and the situation; and it affects the meaning of the sentence by casting doubt upon the sincerity of the pop singer: Does she enjoy to be with her fans and to sign autographs? Is she being real there? Is it she being spontaneous? Or the apparent spontaneity is false?

ok so like i went to wiki and looked up the (constitution x new "hammystan")and it showed me the picture it highlights new hampshire and says first and second session and than it says that they hit up the u.s and was like "ey dude that paper u sent us was adopted it bro thx" xd syays it all on wiki/the pic

i dont really like reading so i guess other people might not like reading either so   imma put the answer in bold italics

honestly, is this even a but since you asked, he's probably at the store trying to get you food.