Magnus Ostrom was born on May 3rd, 1965 in Skultuna, Sweden as second son to local painter Arne and Ostrom. His brother Tommy was three years older and influenced Magnus in his early years with his eclectic record collection including Jimmy Hendrix, Deep Purple, Almond Brothers and Lynyrd Skynyrd.
At the age of eight Magnus built his first drumkit out of his fathers empty paintcans and only a year later he started his first band together with a kid from across the street, Esbjörn Svensson.
Magnus received his first real drumkit with bassdrum, snare and hi-hat only one year later as a christmas present. Another year later he performed his first concert. The band was called ”Beware Of The Beginners”.