Halloween weekend has come and gone, but there’s one last dark gathering coming up on the calendar for October 31. That’s when Depeche Mode hit Boston for a Halloween night arena party at TD Garden. We’ll have more on that shortly, but in the meantime, let’s take a quick rewind to this past Friday night (October 27), when the iconic synth-pop band hit The Tonight Show Starring Jimmy Fallon to perform “Wagging Tongue,” one of the many standouts on the band’s March album Memento Mori. Dave Gahan and Martin Gore aired out the tense, dramatic track ahead of their appearance over the weekend at Madison Square Garden in New York City, and it should sound huge under the Boston banners when Depeche Mode return to town this week. Fire it up below.