Photos: Some High-profile supporters of Dubai's Expo 2020 bid

Pamela Anderson- American Actress

Lindsay Lohan- American Actress

John Baird- Canadian Foreign Affairs Minister

Frans Timmermanssaid- Dutch Foreign Minister

Francois Hollande-French President

Enrico Letta- Italian Prime Minister

David Cameron- British Prime Minister

Boris Johnson- London Mayor

Bill Clinton- Former US President

Bill Gates- Microsoft Chairman