Premise: AC/DC . A hard rock/blues rock band , they have also been considered a heavy metal band , although they have always dubbed their music simply `` rock and roll '' . Hip hop soul is a subgenre of contemporary R&B music , most popular during the early and mid 1990s , which fuses rhythm and blues/gospel singing with hip hop musical production .
Hypothesis: AC/DC has only ever played R&B music.
Label: CONTRADICTION