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K'naan stopped by David Letterman last night to perform "Is Anybody Out There" with Nelly Furtado (it's been a minute). K'naan rocks a Canadian tuxedo, Nelly goes black-on-black, Letterman's unsure what "EP" stands for and the duo do a pretty flawless rendition of the More Beautiful Than Silence cut. Watch above.

(via TRU)