Bill Kaulitz was born on September 1, 1989 in Leipzig, East Germany. He was born ten minutes after his identical twin brother Tom. His parents divorced when he was seven, and his mother remarried Gordon Trümper, a guitarist from the German rock band Fatun. His stepfather inspired Bill and his brother to begin their music careers, and they began writing song lyrics.Bill has stated that his biggest musical influence is German pop artist Nena.

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