Born in Fukuoka, Hayashi trained at the Takarazuka Music School, adopting her stage name when she started her singing career.

As well as hits like Konichiwa Akachan, Futari De Osake Wo and Merankorī, she performed in a number of musical films, including Dorufutzzau desu yu!

[4] Two years later, her song Merankorī (メランコリー), composed by Takuro Yoshida, won Best Arrangement at the 18th Japan Record Awards.

For example, she starred in Shūe Matsubayashi's 1964 film A Little Matchmaker, which appeared in Japan under the same name as Azusa's famous hit, Konnichiwa Akachan.

She was a frequent guest on Kōhaku Uta Gassen, appearing for the eleventh time in 1992, at which she sang Konnichiwa Akachan in honour of the composer, who had died that year.