Apollo (아폴로) is the first group to debut under JSN Entertainment. The south-korean group consists of five members: Lui, ?, ?, ? and ?. The members were introduced through individual teasers, culminating in their official debut on January 15, 2021 with their first single "Delphi".

Apollo is the brother group of JSNE's Artemis, showing their connection by introducing Artemis' members through their following MVs. Named after the Greek god of archery, music, prophecies and the sun, Apollo has a rather complex and cryptical concept.