The 26-year-old actor was nominated by his close pal and former High School Musical co-star Ashley Tisdale, who completed it just a few seconds before he did.
“Thanks @shenaegrimesbeech and @vanessahudgens I donated to ALSA.org and took the #icebucketchallenge PART 1,” Ashley captioned the video.
Zac Efron & Ashley Tisdale – Ice Bucket Challenge
Click inside to see Zac Efron nominate actors for the ALS Ice Bucket Challenge…
Zac Efron Nominates Actors