Can I set an iOS artwork for my element?

I've googled a lot and read some Apple articles but couldn't find anything about this.

So I have an <audio> HTML element on my website that I can play on iOS devices. When I lock my phone and have the sound playing in the background, there is a default, gray artwork image on my lock screen. Is there any way I can change that? Like <audio image="artwork.png"> or something? Feels like Apple would like to have that since an empty image doesn't look very clean...