"I support the important cause of the ALS Association to promote awareness about Lou Gehrig's disease. That is a threat to humanity. That's why I'm here to take this ice bucket challenge. At the same time, I will make a donation to the movement," Tan said.

Aside from Accenture Director Lito Tayag, he also said that McDonald's Philippines president and CEO Kenneth Yang and Asian Institute of Management president Steven DeKrey should do the challenge in 24 hours as well.

Andrew Tan owns Megaworld Corp., which is one of "the leading real estate developers and top business process and outsourcing (BPO) office developer in the Philippines."

While waiting for Lito Tayag to accept the ALS ice bucket challenge, please watch the video of Andrew Tan.