Fashion music?

This is not a music genre, nor a music style.

Fashion is a lifestyle that is first experimented by a few people during a specific period of time and is expected to be later advocated and followed by the public. I think fashion music is the music that some people admire nowadays.

For example, the "non-mainstream" music of the past few years was the fashionable music of the post-80s generation. Haha, now it has almost become "mainstream" music. It seems that the more fashionable music elements nowadays include R&B, Chinese style, etc.