If you don't do it Rog, me old luv, you'll regret it. Anyway on the odd occasions I've been witness to truly dreadful Karaoke "singers" I've not noticed any bloodshed. I do realise, of course, that the musical genres we move in here are far more worthy than "Unchained Melody" or "I Will Survive"
Go do it, RTS. All the best from your fB.