By the influence of her father, she grew up listening to his favorite music, which was classic rock such as Eric Clapton and the Beatles.
Though she expressed a disliking for singing karaoke in front of a large crowd, she eventually sang because of her friend's encouragement, and from that time on the desire to become a singer awoke in her.
During her second year in junior-high school, in the middle of the summer of 2003, Hitomi applied for the Sony Music Auditions.
She had been worried that because of her height (147 cm), she would be overlooked, but her powerful voice attracted the attention of people while she sang live.
In 2005, she was in the middle of high school entrance exams as the title for her 1st single "Bokutachi no Yukue" was announced.
Takahashi's third single, "Aozora no Namida", was soon released on November 30, 2005, and it was used as the 1st opening theme song for the anime Blood+.
On February 22, Hitomi's Official Fan Club was revealed, the title being a play on the first letter of her name and her height, "H147."
The album came in two formats, CD only and CD+DVD (limited edition), and contained 12 tracks in total, with 7 of them being previously unreleased songs.
In spite of this, Hitomi was chosen to be one of many artists to take part in the new tribute album for the new Death Note movie.
[12] Though heavily promoted via the movie, "Tsuyoku Nare" failed to match the success of her "sympathy" era singles.
[13] As most of the singles released for promotion of this album, "Bamboo Collage" failed to enter the Oricon Weekly Top 30.
Since the album release and tour, Takahashi kept a low profile in the music scene, but was recording for a few months.
[17] After more than a year, September 9, 2009, Takahashi released "Wo Ai Ni" as collaboration with Beat Crusaders.
[18] The album featured productions of several artists, including Chara, Koji Nakamura and Rolly Teranishi.