UN Secretary General Ban Ki-Moon and former U.S. President Bill Clinton unveiled a new United Nations program to raise money to help fight HIV/AIDS, malaria, tuberculosis, and more. Through the program, called MASSIVEGOOD, travelers can donate a minimum of $2 on top of their airfare to support an international UN Health financing initiative by clicking on MASSIVEGOOD. Five clicks, the equivalent of $10, bought an insecticide-treated bed net, while 25 clicks was enough to pay for a year’s worth of HIV medication for one child.

Numerous celebrities joined Ban and Clinton in launching the initiative, including Susan Sarandon, Samuel L. Jackson, Paul Auster, and Mary J. Blige, who all appeared in the spot below, produced by Spike Lee.

Click here for the MASSIVEGOOD iPhone app. Click here to visit massivegood.org.