There are 2 artists under the name of NIK;
1) NIK (니크) or full "Nippon and Korea" was a 10, formerly 11 member Japanese-Korean group under Universal music Japan.
The group was found trought the Japanese survival show G-EGG in 2020 and made their debut on September 27th, 2021 with their debut single "Santa Monica / Universe" consisting out of the two tracks Santa Monica and Universe. Santa Monica was written by the group's member Taehoon and a Japanese version of the song was used during G-EGG. Read more on Last.fm