Are there any apps that let you hear music / radio / podcasts on the clock itself? : Apple watch

I have the series 4 and it has a high enough speaker that it is great for phone calls. But I can't figure out how to actually play music using the built-in speaker, it continues to look for bluetooth headphones, and that's not what I'm after.

Although it is just streaming of NPR or something, it would be good. Thanks !!