Born in Fukuoka Prefecture, Tamura gained fame as an advocate for the Lolita fashion movement, wearing Lolita-style clothing in public, and for her music releases, often in music videos and for album cover on CD releases.

Affectionately called Yukarin by her fans, several of her releases have been used as opening and ending themes for anime series, while some have reached the Oricon top 100 singles and album charts.

In 2001, Tamura and Yui Horie formed a unit called Yamato Nadeshiko.

Two singles were released, Mō Hitori no Watashi and Merry Merrily - the latter of which was an insert song in the Love Hina Christmas Special.

Her management also announced that her fan club would change ownership and her radio programs would end.