Actor Hyun Woo joined the ice bucket challenge.

On August 21, Hyun Woo posted a video of himself getting an ice water shower.

Hyun Woo said, "I'm honored to be a part of the ice bucket challenge campaign and I would like to thank Choi Tae Joon for giving me this honor."

He continued, "I hope many people gain strength through this video. Next up are actress Choi Yoon Young, SHINee's Key, and actor Seo Ha Joon."

The ice bucket challenge is a campaign hosted by the ALS association to raise funds to find a cure for Lou Gehrig's Disease.