Because of this discussion I asked him on facebook! He replied on my first messages, but not on this...
Oh wait... until 10 hours later!!
he said
"Far as I know I've been singing it. It's more an inflection than actually saying the word. At least live it is."
Didn't really get that, but he's a great guy answering his fans, and even checks back on facebook chat hours after the message was asked!