Lennart Olof Birger Eriksson, (14 August 1956), often known by the nickname Fjodor, was the bass player in the rebellious Swedish punk rock band Ebba Grön. Eriksson grew up in the poor working-class suburb Rågsved, outside Stockholm. He had several petty jobs to get by, but he wanted to play music. His first band was called Urin, but in 1977 he founded Ebba Grön (at first called The Haters) together with Joakim Thåström and Gunnar Ljungstedt. Ebba Grön went on to become one of the most successful punk bands in Swedish history. Eriksson was known for being the most aggressive member of the band and he also wrote some of the angriest, hardest songs, such as Pervers politiker (Perverted Politician) and Beväpna er (Arm Yourselves).