Regarding music, there is no doubt that everything is inspired by something existing. I think some artists can be parasitic, for example, a band quickly records a song and changes very little in terms of style, arrangement, and instrumentation to profit off the success of an existing song. But I would like to think most successful artists do something different to existing art, thereby creating new art. That may be in how they write lyrics. It may be how they combine diverse genres. It may be the sound they're able to achieve. Good artists bring something unique that makes them worth listening to.