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The fact you're unable to figure that out renders the rest of your article sorta moot.
Here are the lyrics to "They Don't Know": http://www.paradise-engineering.com/quotation/theydontknow.html
And here are the (best set I could find online of) lyrics to "Rehab": http://www.metrolyrics.com/rehab-lyrics-amy-winehouse.html
Kirsty MacColl's song could easily have been penned in the '60s. As realized by Ullman, it's a wonderful bit of '60s pastiche. Winehouse's song couldn't have been written in the '60s, although she operates in a stylistic genre similar to '60s pop and soul in many (though most certainly not all) respects. Instead of slavishly imitating the '60s, Winehouse's record expands upon and updates that style.
If you're seriously comparing songs like "Rehab" or "You Know I'm No Good" to Ullman & MacColl's clever pastiche, you must be on heavier drugs than Winehouse.