is one of the sixth generation members of the
J-pop group
Morning Musume. Her professional first name is spelled in
hiragana to differ her from the Japanese actress
Rena Tanaka whose name is the same in
kanji because their first names can be pronounced both as "Reina" and "Rena". Tanaka provided the main vocals for the single
Shabondama, making her one of the few members of Morning Musume who was able to lead on her debut single. She was featured in a solo version of
Memory Seishun no Hikari on a fan club release CD. Tanaka is the only member who auditioned twice to get in.
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