I just assumed you were morphing the two songs, and hence the two singers' names, in a joking manner, so I was just joshing back! Oh well, no harm, no foul.
So to track the score.... kidding, joking and riffing and the same as joking, kidding and riffing and are very similar to riffing, kidding and joking. Clear?
I'd like to stay longer but a burned out building awaits.