Organism 12, also known as Johan Hellqvist, Organismen or Herr Ågren, is a hiphop artist from Uppsala, Sweden, and member of the group Mobbade Barn med Automatvapen (MBMA).

As a solo artist, he has among other things released the album "Petar på döda saker med pinnar" (Poking dead things with sticks), "Bakom Kulisserna", the mixtape "Garotta di Ansjovis" and the willingly grammatically incorrect tape named "Ett hund" (An dog).

Discography:

1998 – Full och förvirrad

1999 – Den där Herr Ågren

2001 – Bakom kulisserna

2002 – Ett hund

2004 – Petar på döda saker med pinnar

2005 – Garotta Di Ansjovis

2006 – Versioner vol. 1

2007 – Versioner vol. 2

2009 – Bill & Bull (mixtape tillsammans med Öris)

2009 – Om gud vill och vädret tillåter

2010 – Marionetten

2010 – Högt i tak

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