Music’s most surprising cover songs (Mauricio Santana/CON/LatinContent Editorial/Getty Images)

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Feist surprised fans at a recent Mexico City gig when she launched into a rendition of Guns N' Roses' epic anthem "November Rain" -- complete with a Slash look-a-like on guitar -- that culminated with the Canadian performer smashing a piñata. Listening to her most recent album, the hushed and melancholic "Metals," one might assume there isn't room for bombast in her repertoire. In honour of Feist's foray into hard rock, we've compiled a list of 10 other artists who've side-stepped audience expectations with a surprise cover song.