It was revealed in NME that Randy Fitzsimmons is a registered pseudonym belonging to Nicholaus Arson. This has led many to believe that Randy Fitzsimmons is in fact a myth, and that it is Arson who writes the songs. Arson and the rest of the band deny this and insist on the existence of Randy Fitzsimmons as the band's songwriter.
In the DVD Tussels in Brussels, there is a live performance by The Hives on Top of the Pops where Pelle denies that Nicholas Arson is Randy Fitzsimmons. Also, in the film part of the DVD, there is mention of Randy Fitzsimmons.
In the closing credits of the 2008 film Taken, Fitzsimmons is listed as the writer of The Hives' single Tick Tick Boom.
The band often makes allusions to his existence; for example if the back of Tyrannosaurus Hives is lined up with the front, it is noticeable that there are 12 legs, when there are only the five band members pictured. In the video for "Main Offender", his hand is seen signing some sort of contract.
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