I too have "Unknown by Unknown on Pixel. Pull down to the screen, long press on it, I got an option that came up "hide when app is not in use" Pressed that and it is gone.  no need to delete Pandora. They are a great place for music. The steps I gave took me all of 20 seconds to solve the issue. We love Pandora. My Android does not lose ANY battery to pandora unless I am actively listening to it.  My battery loses zero to Pandora when it is not active. I check battery use and apps often. Pandora is not the culprit on my phone.  on this Pixel, if one pulls pulls down one gets things like Internet, flashlight, blue tooth etc. At the bottom there was a purple screen that said unknown by unknown. If one went to battery, apps. Pandora had used zero battery since last recharge. When I hit hide that went away.  Part of what I think Pandora is experiencing is universal to the software industry. In this house hold we call it the 3 year olds finger painting system - look mommy look - pretty with blue and green. Then mommy and daddy praise the child and the painting goes on the refrigerator.  The next day the child comes back with another one and expects praise, which is given. The child says, look pretty blue and green. Mommy says wasn't the one yesterday blue and green?  The child says, yes but yesterday I had my hands going this way round and round (clockwise) and today I was going this way (counter-clockwise.)  Day after day there are changes in the paintings but nothing really changes. Same for software, make a fix that breaks something else, then fix that and break something else. I worked for a software company once, trust me on that. New actual features that do something valuable are far in between, and they have consequences. Add ten new features and there are 25 new settings to manage them. Fix those 25 and there are 37 plus the screens change again. We hate it, but that is the state of software development in the world today, everyone is trying to make a prettier finger painting to show mommy and daddy (and keep their jobs).      mod edit: merged comments ... View more