Wagner. As brought up on this thread.
An anti-Semite who nevertheless is loved by conservatives and Christians who should know better.
Wagner wasn’t a ‘pop star’. He stands at or near the peak of Western Culture. Chopin was also an anti-semite. So was Mozart (if his letters are to be believed) and Charles Dickens among many others.
Really based on your logic the only option is to shun secular culture all together (Shakespeare, Beethoven...) and only take in Bible based culture.