AccountKiller
One of our users suggested: "To cancel a free account, contact Pandora Listener Support at pandora-support@pandora.com from the email address associated with that account with the request to delete the account. If you do not have access to that email account, you may email Pandora from another email account requesting to delete the Pandora account, but you must include the birth year and zip code of the subscriber.
To cancel a paid subscription: 1. Click on the 'Account' link in the upper right hand corner of the homepage 2. Click 'Billing' and uncheck the 'Auto Renew' box in the lower left corner 3. Click 'Save'.
Publicly visible text/images often aren't properly deleted even when you succeed in deleting an account. Try editing or deleting them manually before deleting the account itself. If you're unsure what happens to your tracks you can always contact Pandora and ask personally. By the way, deletion requests don't necessarily mean your data will actually be deleted (e.g. due to legal obligations).
If you signed up for Pandora using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Pandora. Click the icon below to find out how.