Help with identifying an ukulele?

Hello, I'm not sure why it's bothering me so much but could someone please tell me whether Jack Johnson is playing a concert or a tenor uke in this video here with Jake Shimabukuro? It looks like a concert to me but Jack is bigger and taller than Jake so I'm not sure if it's just an optical illusion. Thanks!

http://www.youtube.com/watch?v=nfpVKycFulk

Heck if I know. Sure ain't going to watch 1:53 minutes of commericals on Youtube. Hate those dang commercials.

I think Jack's KoAloha is a Tenor. I don't believe KoAloha made regular concerts with the crown bridge but I do remember they made a "Super Concert" with a crown bridge....a concert body with a Tenor neck.

However, it just looks like a tenor to me.....

Looks like a KoAloha crown bridge tenor to me. But it could be a super concert. The neck definitely looks tenor length but the body is a bit small.