MusicBerlin Backstage: Die Lochis04:41This browser does not support the video element.Music08/31/2018August 31, 2018With 2.6 million subscribers, Roman and Heiko Lochmann, aka Die Lochis, are YouTube stars. The twins are also successful musicians. They hope their new album, "#whatislife", will put them back at the top of the charts.Copy linkAdvertisement