Regarding the possibility of the band playing more obscure tracks
during their upcoming tour, Singer said, "I already saw the list
[KISS] did on the last tour with AEROSMITH. From what I've seen, half
the set has changed. That's 50%. That's a lot. But there are also
songs added to the set-list (to make it longer). If we changed 100%
of the set, you wouldn't hear 'Detroit Rock City', you wouldn't
hear 'Deuce', or any of those songs. I even said to Gene the other
day, when I told him about working on some older songs that, 'Tommy
Thayer and I have the unique perspective, that no one in KISS will
ever know or understand.' We were fans that ended up playing the
band. We were fans when we were kids. I know what it's like to be on
both sides of the fence to a certain degree. Not the same as a
diehard fan, because I'm not that kind of mentality. I know what more
obscure songs I liked as a kid, mind you that was 30 years ago. But I
can relate to what the diehards want in regards to that. So I'm
trying to encourage us to play a lot of cool old songs, and so is
Tommy. This band has the ability to play ANYTHING from the KISS
library. I mean ANYTHING. There's nothing musically the band can't
play. Any song, from any era, off of any record, we can play. We
really have to wait and find our feet and see how things go. We have
plenty of material to inject in there, and I think this tour will be
really good."

From: KISS Underground Archives

and http://kissasylum.com/