Metallica covers A-Ha?

Robert Trujillo and Kirk Hammett have been doing some interesting covers during their brief appearances as a duo during Metallica's shows this year -- but this has to be the strangest.

They tackled "Take on Me," the smash 1980s hit by a-Ha, during Metallica's gig in Oslo, Norway Wednesday night. A-Ha is from Norway. Watch the cover on YouTube.