Look, I like the new Duffy single "Mercy" as much as, it would seem (it's been #1 in the UK for a month), everybody else, but even I can tell when something sounds identical to something else. And so I present to you Duffy's "Mercy" with it's chorus chants of "Yes Yes Yes" and juxtapose (wait, is it still juxtaposition if the two things are similar?) against Amy Winehouse's insta-classic "Rebab" with it's familiar chorus chants of, well, of you know what. I know they both have similar aesthetics, but that doesn't mean it's not completely obvious what the Duffy camp were doing.
Duffy - "Mercy"
Amy Winehouse - "Rehab"