Iron Nordströms was a hard rock / heavy metal act doing instrumental covers of well-known Swedish dance band songs. They released at least one demo-tape in the early 90's entitled 'Axeparty II' were they used different monikers for every song, for example Wizex Pistols, Def Stefanz, Borsch Jovi, Guns 'n' Skytts, Lasse Leppard, Twisted Christer to name a few.
Iron Nordströms started out way before
Black Ingvars (another Swedish band playing hard rock covers of popular Swedish dance band songs, children songs, christmas songs and pop songs). It's rumoured that they were inspired by Iron Nordströms, but it have never been confirmed.