If you don't know much about the challenge click here.
From Zac Efron's youtube:
Rob's not on social media, so he asked me to post his Ice Bucket Challenge for ALSA.org. #StrikeOutALS
#RobPattinson's not on social media, so he asked me to post his @ALSAssociation #IceBucketChallenge! It's hilarious! h ttp://t.co/GIBRoGsReY
— Zac Efron (@ZacEfron) August 20, 2014
In case you missed it, Rob was challenged by Zac yesterday