Their debut is absolutely mind-blowingly awesome. It was mentioned in the "best heavy album of 2010" thread, but I want to say again just how joyful and fist-pumpingly brilliant this album is. I can't stop grinning when I'm listening to it, especially on the last track, 'Utrydd dei Svake' which stands for 'Eradicate the Weak'.
ERADICATE THE WEAK! PUT THEM IN BRINE!
Also, the last 3 minutes after he yells 'KVELERTAK!' past the 3:14 mark, is just glorious.