Randy Fitzsimmons is the credited songwriter for all of The Hives' original songs.
In the "Main Offender" music video, Fitzsimmons' hand can be seen signing a contract of some sort.
Also, on the back cover of the band's third album "Tyrannosaurus Hives", 12 legs and feet can be seen while there are only five people (the five members) on the front cover. The two extra legs could be Fitzsimmons'.
In the live performance video of "Go Right Ahead" Fitzsimmons appeared in the studio with a black mask covering his face. This is the first time a bodily figure representing Fitzsimmons has ever appeared on camera.