Redditvision Song Contest SE4

The Redditvision Song Contest Special Edition 4, commonly shortened to SE4, was the fourth special edition and fourty-fourth overall edition of the Redditvision Song Contest. It was hosted by u/ZwissDa2nd in Jeju Island, South Korea due to last edition's winner, Antigua and Barbuda, refusing the hosting rights.

The winner was Switzerland with the song "IN IN IN" by Zebra Katz.

Theme
As per tradition for Special Editions, the moderation team asked for theme suggestions from the community via a theme ballot posted on the subreddit on the first day of 2021: users could submit three themes ideas or more. On the 7th of January, after reviewing the themes ideas proposed, the moderation team posted a poll in which users could vote for which ideas they liked the most. The ideas with the most votes would then proceed to the next round, where the winning theme would be randomly selected.

The 5 themes that the community voted for:
 * Artist must have the same zodiac sign as you
 * No music videos
 * No returning acts
 * Under 100,000 views
 * Under 1,000,000 views

On the 10th of January, the theme was revealed: each user had to send a song that has less than 100,000 views on YouTube at the time of song submissions.

Participants
63 users participated, a small reduction from the 64 participants in the third special edition, but an equally small increase from the preceding edition 40.

Four users made their debut: u/ge_nnna, u/not_madagascar, u/Optimal_Pollution733 and u/TheMainPhoenix.

u/egeym switched accounts to u/Dies-IRS.

National finals

 * See also: National Finals in Redditvision Song Contest SE4

Semi-final 1
South Korea and Luxembourg voted in this semi-final.

Semi-final 2
Côte d'Ivoire and Switzerland voted in this semi-final.

Semi-final 3
South Africa and the United States voted in this semi-final.

Grand final
Non-qualifier Papua New Guinea was disqualified for not voting in the final.