LUNA SNOW

Sunday, November 1, 2026Earth-616 canon“Flow” single / MARVEL Super War (2020)

Today's Fact

Marvel's fictional idol needed a singing voice, so Marvel hired an idol who was already called Luna.

LUNA SNOW'S RECORDING VOICE IS A REAL IDOL NAMED LUNA — F(X)'S LUNA SANG “FLOW” FROM SEOL HEE'S POINT OF VIEW!
The Featured Fact

In December 2020, Marvel announced that Luna — the main vocalist of the real K-pop group f(x) — would become the singing voice of Luna Snow. Her first track in the role was “Flow,” released that month and sung explicitly from the character's perspective, timed to Luna Snow's arrival in the mobile game MARVEL Super War.

The casting is a hall of mirrors: a performer named Luna voicing a hero whose stage name is Luna, performing songs credited to the fictional idol Seol Hee. The character already had a discography before the hire — the singles “Tonight” and “I Really Wanna” (featuring Krystal Youngs) had been released under Luna Snow's name while she was still a game-only character.

Luna introduced “Flow” herself in a video message for players, presenting herself as the voice of Marvel's first K-pop superhero. It is one of the strangest credit lines in Marvel history: the songs exist on real music platforms, the singer is a charting idol, and the artist name on the cover belongs to a woman who debuted inside a phone game.

Why It's Obscure

Comics readers meet Seol Hee in panels; almost none of them know her records have a real idol's voice on them.

2020
The announcement — December 2020: f(x)'s Luna is named the new voice of Luna Snow, with “Flow” released to mark the character's MARVEL Super War debut.
The name
Luna sings Luna — Park Sun-young performs under the stage name Luna; her Marvel character performs under the stage name Luna Snow. The shared name made the casting a headline in Korean entertainment press.
The catalogue
Three singles deep — By the time the real Luna arrived, the fictional one had already released “Tonight” and “I Really Wanna,” making “Flow” the third single in Seol Hee's discography.
The pitch
“Part-time idol, full-time hero” — Marvel bills Luna Snow as a talented idol and part-time K-pop star who is a full-time superhero — the music is not a gimmick bolted on, it is half her job description.

Sources

Every claim above checks out against at least two of these independent sources.

Bullpen Bulletins

  1. Listen: f(x)'s Luna Lends Her Voice To Single For Marvel's K-Pop Superhero Luna Snow — SoompiSoompi (December 18, 2020) reports f(x)'s Luna lent her voice to Luna Snow for the single “Flow,” sung from the character's perspective for her MARVEL Super War debut, following the earlier singles “Tonight” and “I Really Wanna.”
  2. LISTEN: f(x) Luna Sings New Single from MARVEL's Luna Snow's Point of View — KpopStarzKpopStarz independently reports Luna announced as the new voice of Marvel's first K-pop superhero, releasing “Flow” from Luna Snow's point of view and introducing it in a video message to players.