Caligola is best known as a side project of two Mando Diao members, but it was actually founded as a network of artists in Stockholm back in the '70s. When Mando Diao singers/guitarists Björn Dixgård and Gustaf Norén joined the collective in 2008, they worked toward the production of a video, "Sting of Battle," which was released in December 2011. Together with drummer Oskar Bonde (from Johnossi), singer Agnes Carlsson, German DJ Paul van Dyk, and Swedish hip-hop producers Masse and Salla Salazar, they recorded an album titled Back to Earth, which was released in March 2012. T...