From 2002 to 2013, she was one of the main vocalists of the girl group Morning Musume and participated in other music acts under the Hello!

Tanaka auditioned for a spot in Morning Musume's 5th Generation in 2001 and passed, but had to leave the training camp for being under the age limit.

She was featured in two solo versions of "Memory Seishun no Hikari" on a fan club release CD.

"[3] She also sang the coupling track, "Suki ni Naccha Ikenai Hito", with Suzuki and Megumi Murakami.

Tanaka graduated from Morning Musume on May 21, 2013, and subsequently concentrated her activities on her rock band Lovendor.

Originally there were four members: Reina Tanaka, Marina Okada, Yuki Uozumi, Marin Miyazawa.