Tom’s and Bill’s parents, Simone Kaulitz and Jörg W., separated when the Kaulitz twins were seven years old. Their mother Simone married Gordon Trümper, the guitarist from the German rock band Fatun. Bill Kaulitz showed an early interest in singing, as did Tom in playing guitar. Trümper noticed the twins’ musical inclinations and helped the twins to start their band. According to Bill in several interviews, he and Tom started writing music at seven. Their friends Georg Listing (Bass guitar) and Gustav Schäfer (Drummer). 