While hanging around New York to promote the release of their sophomore effort, 'The Physical World,' the Canadian rock duo Death From Above 1979 stopped by the 'Late Show With David Letterman' last night (Sept. 10). Check out their performance of the album's lead single, 'Trainwreck 1979,' in the video above.

It's hard to believe that the loud and energetic music created by Death From Above 1979 is handled by just two people: bassist Jesse Keeler and drummer/singer Sebastian Grainger. Last night, though, they went all out and incorporated Letterman's house band, the CBS Orchestra, into their performance.

With flutes and trumpets and keys added in -- all thanks to band leader Paul Shaffer -- 'Trainwreck 1979' received a fresh musical treatment; one, we assume, fans will likely never hear again.

Do you think the song sounds better or worse with the added instruments and arrangements? Let us know in the comments section below.

'The Physical World' is available now on CD and digital formats as well as vinyl. You can get your hands on the album here, and make sure to check out Death From Above 1979's full tour schedule at their official website.