Thanks for the confirmation, Nicole!
I've told my girls from the time I booked it about the fan club performance, and they're really pumped up about it. I know last year one of the other bands (maybe more) did the same thing; I can't recall the name of them off the top of my head. The people who had a room across the hall from us told us about that and we thought it would be fantastic if GBS did the same thing.
Either way, it'll be a blast; it's too bad everyone here at the OKP isn't able to go;
I think the entire OKP is considered their fan club! 
We're really looking forward to the cruise again this year and looking forward to meeting a bunch of the OKPers! 
Cheers,
Terri