Tom Kaulitz is the guitarist of Tokio Hotel He was born on 1 September 1989 in Leipzig, Germany. His identical twin brother is Bill Kaulitz, who is younger by ten minutes, and who is also the singer of the band. When he and his brother were seven, their parents, Simone and Jörg Kaulitz, separated. Soon after Simone started dating Gordon Trümper, the guitarist of the german rock band Fatun and they married after twelve years of dating, in 2009.
Since an early age that Tom showed interest in playing the guitar, as did Bill in singing, and in several interviews, Bill claims that he and Tom started writing songs since the age of seven. When Gordon Trümper noticed their musical inclinations, he helped the both to start their own band. The year the brothers turned twelve, they met Georg Listing (then 14) and Gustav Schäfer (then 13), in the audience of one of their shows. Listing and Schäfer were friends and after the show, having liked what they heard and saw, made an offer to join. The band was promptly renamed "Devilish" due to an article published at the time that referred to their "devilishly great" sound. The four continued to perform, but aside from being featured on a small-time German news program somewhere between late 2002 and early 2003, Devilish were not going anywhere until his twin brother Bill auditioned on the reality TV talent show "Star Search."