A/B is the second studio album by Icelandic rock band Kaleo. It was released on June 10, 2016. Arnar co-produced and mixed four songs on the album,  All the pretty girls,  Broken bones,  Automobile and Vor í Vaglaskógi.

Arnar also recorded and mixed two live videos for Kaleo featured here below. A recording of Kaleo performing their single Way down we go inside of a volcano in Iceland and a performance of Save yourself live on a glacier also in Iceland.