Does this city's spelling actually look like how the name of the city is pronounced.

Cdm - It's a joke in the U.S. which isn't really true any more and I'm not sure when it changed - but at one point, Flint, MI was considered extremely boring - peole would say things like they drove through Flint, MI and saw a rock and a flower, nothing else.

Tired of Life? Again without wishing to insult KS, were that true I suspect it would have a rather high suicide rate.
Spelt as it sounds? I'd say yes.

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[KS] I lived five years of my life less than 50 miles from Flint; I am well aware of its reputation. :)

Popular song? Yes -- perhaps several (although that might depend on how strictly I'm supposed to interpret the word "subject"). Googling tells me there are at least half a dozen songs with the name of this city in their titles, and many many more that include the name in the lyrics. Most of these songs I had never heard of, but some undoubtedly qualify as popular songs.

In the Eurozone? No.
In Asia? No.