Storm Corrosion is the musical collaboration between Mikael Åkerfeldt (Opeth) and Steven Wilson (Porcupine Tree). The project's self-titled first studio album (released on May 7, 2012, through Roadrunner Records) has been described by Wilson as being "the final part in the odd trilogy of records completed by [Opeth's] Heritage and [Steven Wilson‘s] Grace for Drowning". Mikael Åkerfeldt first became aware of Steven Wilson circa 1995-1996 after Åkerfeldt's best friend Jonas Renkse played him the Porcupine Tree album The Sky Moves Sideways.