Melding surprisingly accessible metal- and pop-driven hard rock, costumed Swedish outfit Ghost delivers sonic sermons centered on horror imagery, the occult, and religious themes. The group is fronted by lead singer, songwriter, and conceptualist Tobias Forge, who dons various demonic Pope costumes and is backed by a band of "Nameless Ghouls" hidden in cloaks and heavy makeup. 2011's Opus Eponymous wed '70s hard rock to '80s hair metal in hook-laden songs. 2013's Infestissumam offered a keyboard-centric approach, combining progressive pop and alt metal. 2015's Meliora mixed vi...