ukulele concert

Jacob has been learning to play the ukulele this year at school.  He loves it and is really good at it. His class just presented their concert last week and they were awesome!  Jacob played the 8-string ukulele during the concert.  Ever heard of such a thing?  I hadn't until he told me and showed me.  Basically there's a high and low G,C,E and A strings -- so every chord is done in octaves. The 8 strings give a more full sound to whatever you're playing -- not so "twangy". Now that Jacob is so good at the ukulele, I think its high time we head to Hawaii, don't you agree?