His Royal Baldness Prince William

5/8/2008 1:15 PM PDT BY TMZ STAFF
Unlike his aunt, Fergie the Duchess of York, Prince William doesn't need Weight Watchers to get thin.

The 25-year-old Prince of Wales visited a London hospital on Wednesday -- and hopefully picked up a Propecia prescription.

Even though William's not King of England yet, we can already see his crown.