Legendary Canadian trio Rush brought what just might be their final extensive tour to Madison Square Garden in NYC last night, where they were joined by a special guest for a Signals track.

Jonathan Dinklage, the brother of Game Of Thrones actor Peter Dinklage, came out towards the end of the first set to add violin to "Losing It." Last night's "Losing It" was just the third time Rush has performed the 33-year-old song. Peter Dinklage attended the show and as with every performance on the tour was featured in a video displayed during "Roll The Bones." Watch Jonathan Dinklage sit-in with Rush on "Losing It" at last night's show thanks to scorpionsunbreakable:

Here's video of "Roll The Bones" featuring a rap segment with Peter Dinklage, Tom Morello, Jason Segel, Les Claypool and others: