Depends in what way Janet sings it really and she isnt really a sell out as its the production fault for a heroes based theme if Janet's heroes are to do with rock
At the end of the day, Janet can sing what she wants whteher it be Nirvana or Red Hot Chili Peppers and actually Simon was stupid up there because hes basically saying no one should sing a Rock song for their audition or on the live show when we have had a Rock based theme already featuring Guns N Roses another band who wouldn't exactly explore his show
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