How to remove your Rdio account
Make sure you are logged in, then visit the link below and click the delete link at the bottom of the page. Enter your password to confirm.
Direct removal link: http://www.rdio.com/settings/advanced/
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for Rdio using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Rdio. Click here to find out how.