In the first months of 1980 two young men from Madrid Juan Luis Serrano and Francisco Laguna, Bass and Guitar, who had been together in other bands such as Red Box or Madrid 20, decided to form Obús.
Nos primeiros meses de 1980 dous mozos madrileños, Juan Luis Serrano e Francisco Laguna, baixista e guitarrista, que xa coincidiran en outras formacións como Red Box e Madrid 20, decidiron formar Obús.