4. Elle MacPherson
Australian supermodel, Elle MacPherson, also owns an American Express Red card, which is launched by Bono, the spectacled U2 rocker. The Red Card donates one per cent of the purchases to the Global Fund, in order to help those who are battling with tuberculosis, AIDS, and malaria in Africa. The Global Fund is an international effort, aimed towards eradication of these diseases from Africa. So, if you make a lot of purchases with your Amex Card like MacPherson, you can consider opting for a Red Card.