There are at least 3 artists named Rain.

1. Jung Ji-hoon (Korean: 정지훈, born June 25, 1982), better known by his stage name Rain, is a South Korean singer, songwriter, dancer, actor, and record producer. He made his solo debut on May 13, 2002 with his first album N001. Rain''s musical career includes seven albums (six Korean, one Japanese), 28 singles and numerous concert tours around the world. He achieved breakthrough success with his third Korean album, It''s Raining (2004), which spawned the number one single of the same name. The album sold a million copies in Asia, and established Rain as an international star.

2.UK-based act RAIN were founded as a rock project by Rob GROUCUTT (vocals, guitars, keyboards), Mirron WEBB (vocals, guitars), Andy EDWARDS (drums, additional instruments), and John JOWITT (bass). Under the UK lockdown situation they recorded and produced some material for their debut album titled "Singularity", that finally seen the light in November 2020. The band have returned in 2023 with the release of their sophomore album "Radio Silence" .
3. Rain was a short-lived emocore from Washington, D.C. that existed from 1986 to 1987 as a part of the Revolution Summer. The band consisted of Jon Kirschten (guitar, vocals), Bert Queiroz (bass, vocals), Eli Janney (drums), and eventually in 1987, Scott McCloud (guitar, vocals). Their only release consisted of the six-track EP, "La vache qui rit", recorded in 1987 and released in 1990.