Ember js, show spinner when something is loading in background

Is there a way with EmberJS to show a loading template somewhere when something in my page is loading something?

For example, I have a page with many many songs artists, and each of them have many many songs. I load the page of the artists, and good, but in background I'm loading info about songs of everyone. I simply need a loading spinner somewhere that says to me the site is loading something (for example, there is in "Network" tab of Chrome Developer Tools something pending...)

how to do that in such an elegant Emberjs way?