Given the newly release of Android Lollipop and Material Design, wouldn't it be nice to rework Spotify's existing look to a more material one. I'm not saying that you should redesign it totally just a rework to implement the Material Guidelines. Something like this would look really nice, while you wouldn't stray very far off the current design that you are having.
See "screenshots" of how it possibly could look here: Spotify with Material Design
Please add your kudos to this idea if you'd like to see this implemented.
A similar idea has already been suggested here: Redesign the Android app to fit the Design Guidelines (the idea was created before the new Material Design was out, but it requests "to fit the guidelines" so it's a duplicate).
Please leave your comments/kudos there to support the idea! 🙂 And would be great if you could post your screenshot / example in the comments, too!