There is more than one artist with this name:
1) Mirai is a pop group from Frýdek-Místek, Czech republic.
Established 2014 by Mirai Navrátil and Šimon Bílý.
First EP "Cesta z města" was released 2015, first album "Konnichiwa" 2017.
Band members (12/2018):
Mirai Navrátil - vocals, guitar
Michal Stulík - solo guitar
Tomáš Javůrek - bass
Šimon Bílý - drums

2) Mirai (未来) was a Singaporean jpop girl trio comprising 陈毓秀 (Liz), Roselin Ismail (Rose) and Brena Tan Shu Yun who was later replaced by 王儷婷 (Olivia Ong) after she (Brena) left the group. They are most famous for their debut single "Open Up Your Mind" which was used as an insert song in the anime Gensoumaden Saiyuki. There is also a Mandarin version of "Open Up Your Mind" named 放开 (fang kai). Mirai also later released two mini-albums PINK and BLUE in Japan simultaneously - featuring songs in Japanese, English, and Mandarin.

After the group disbanded, member Olivia Ong actively pursued her own solo career as a singer and is now a successful singer in Taiwan (signed on to Taiwanese record company HIM Music).

Trivias:
- Rose is Malay while the rest of the girls are Chinese.
- They debuted in 2000 around their tender ages of 15 that time.
- The beginning of the song 放开 (fang kai) features a short dialogue between the members of the group, highlighting their Singaporean-accented English.
- "未来" can be read in both Chinese as wei lai and Japanese kanji as mirai with both sharing the same meaning of "future" in their respective languages.

Original members' biography (Chinese): link Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.