If the xfactor is looking for pop stars why are they insisting on running heats that have nothing to do with pop stars. Swing, queen, lady Gaga, these may be established acts but not showing what the the new talent can do.
I suppose that a true pop star can sing a variety of genres. They are looking for someone who has the whole package and can still sing with a particular style. If the contestants just sang popular music of today, it won't show the audience or judges their vocal range. Just a guess.
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