Steps to remove extensions:
1) Click the Chrome Menu (
2) Go to Setting, a tab will open
3) Go to Extensions
4) Find the iheartradio app
5) Click the garbage can next to the app in order to remove it
If you are still experiencing these things, you can reset Chrome back to it's original settings.
Steps to reset Chrome:
1) Click the Chrome Menu (
2) Go to Setting, a tab will open
3) Click at the very bottom "Show advanced settings..."
4) Find "Reset browser settings"