How to uninstall an app on iOS

Of course, by holding down on an icon and tap the x lets me uninstall an app. But take a look at this:

Here, the Pandora app is somehow stuck at the "update phase". Tapping it to continue download doesn't work. The progress "circle" will get stuck. So I decided to reinstall it.

Translation:

Delete “”

Deleting “” will also delete all its data.

For some reason it doesn't even show the name of the app. It's just blank.

Tapping delete does nothing. So what do I have to do to fix this problem?

Running iOS 8, not jail broken.