Justin Theroux's Ice Bucket Challenge Includes a Surprise For Jennifer Aniston!

Justin Theroux showed off his toned physique and good looks while filming his ALS ice bucket challenge video on Saturday. As a pal waited to pour water all over Justin's tight t-shirt and flattering jeans, the actor nominated a special A-lister to get her hair wet: his fiancée, Jennifer Aniston! While we wait to see if Jennifer joins the long list of celebrities who have embraced the ice bucket challenge, check out the other stars who have not yet taken the plunge.