Weezer were in Nashville this weekend to play a pair of shows at the Ryman Auditorium, but, somewhere in-between playing Pinkerton and The Blue Album in full, they found time to swing by Jack White's Third Man Records and record a new, acoustic version of 'Undone (The Sweater Song)' b-side 'Susanne'.

By the looks of the two video's the band posted on their official Instagram page, it was something of an unofficial concert, and everyone in attendance decided to film it. If Jack White ever steps into a room with that much digital technology he'll probably melt.

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