I sing with karaoke files when I perform with the female vocalist ... it's HER gig and HER equipment, and if I don't have to take my gear and set it up, I have become OK with it (it DID take a while for me to get comfortable with that) ... but people are still hearing ME sing ... it's just that sometimes I have Sinatra's arrangement backing me up ...
I still prefer using MY kb and MY playing to back me up ...
And OF COURSE, I would PREFER to be playing with the band ... but then, that's me ...