Speaking at CES in Las Vegas, Robbie Bach has revealed that Live now has over 20 million users worldwide.

The entertainment and devices boss was on hand to deliver a keynote address celebrating the success of the platform - a key part of the console's success.

"Today, over 20 million people are members," Bach beamed.

"To put this in context and perspective, that's nearly three times the number of people who watch Oprah."

Twitter, Last.fm and are also being used by millions of users, Bach revealed, the service adding 1.6 million users from Xbox Live.

By Luke Guttridge