What are some interesting/different questions for a radio interview?

Next Tuesday Im set to be doing my first on air radio interview. Im pretty excited about this especially since this is an artist im quite fond of.
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Thing is, I’ve never really done an interview before. I know the obvious questions to ask, but I really dont want to ask obvious questions. They more than likely hear the same stupid questions on every other station they go on.
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I want something different and interesting that will while still being insightful on the artist but give a different spin to it in a comedy sort of way or just off the wall random fun questions.
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Ideally Id like them to be able to look back on this interview and think how different/cool it was instead of just another whens your tour, whats your new cd, blah blah blahhhh.
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Does the almighty fluther have any interesting questions I could put forth?