There is more than one artist under this name:

1) MISO (born Kim Miso in 1992) is a South Korean R&B singer and producer. Miso spent her childhood in England, but she's now living in South Korea. Her songs are characterized by a very peculiar modern and soft beat. Her name has often been associated with artists like DEAN and she has worked with CRUSH too.
https://soundcloud.com/misomusic

2) MiSO (미소) (born Kim Mi So (김미소) in February 4, 1995) is a South Korean pop-singer. She's a former member of girl group GIRLS GIRLS under H Brothers Entertainment. She started her solo career in 2017 with the song 'KKPP'.

3) MISO is a band from Melbourne, Australia. MISO's transcendent, almost mythical practice has resurfaced with new and dynamic form, with their trademark digital/acoustic format regenerated to exhibit new works inspired by post rock, new romantic and trip hop sensibilities.
https://listentomiso.bandcamp.com

4. M.I.S.O is a girl group that stands for Magic Souls of Oriental. M.I.S.O is made up of members from different part of Asia: Megumi (Japan), Ha Hwang Haiyen (Vietnam), Rina (China), Park Jin In (Korea). Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.