Born Li Chun, she rose to stardom as a member of the girl group Morning Musume.
She made her debut performance in 2007 at the Saitama Super Arena.
She and Qian Lin were the only non-Japanese members of Morning Musume.
She was born in Yueyang, Hunan, China and raised in Tokyo.
Another popular J-Pop singer like JunJun is Misia.