I think part of it's about the idols of today's world & those who choose to follow them.
"Oh it’s a white hot soul they want,
sinful."
Referring to the idols themselves. "Sinful" may be referring to the idols as fakes & their immoral rise in the entertainment world.
&
"If it’s a white hot soul they want
It’s a black heart they’ll get."
Referring to the fans of these "phoney" idols & the wicked hearts they'll possess for encouraging them to succeed.
I think part of it's about the idols of today's world & those who choose to follow them.
"Oh it’s a white hot soul they want, sinful." Referring to the idols themselves. "Sinful" may be referring to the idols as fakes & their immoral rise in the entertainment world. & "If it’s a white hot soul they want It’s a black heart they’ll get." Referring to the fans of these "phoney" idols & the wicked hearts they'll possess for encouraging them to succeed.