Thanks for the follow up, @Strongarm1731. Requesting Siri to open apps while the phone is locked is a iOS level feature. Unfortunately, Pandora doesn't have control over this. I should note that this experience is not limited to Pandora. Siri will request to unlock your phone for other apps as well. However, you should still be able use voice commands to request Pandora to play music while the phone is locked and Pandora is not in the background.   ... View more