Mike Wilson posted on facebook:

Now, you might want to take this with a HUGE pinch of salt....but, EVIDENTLY, we are on the Later With Jools Holland Show, tonight....BBC 2, 11.05pm, singing some nice gentle backing vocals to a couple of Sting's new songs....but, to be on the safe side, it might be best just to record it...then check it out in the morning and hopefully be pleasantly surprised!! ;-))

"nice gentle backing vocals"? That'd be a novelty!