From the official Overwatch 2 website:
Today we are announcing Overwatch 2’s first-ever in-game musical artist collaboration. We’re teaming up with K-pop sensation, LE SSERAFIM.
One of the fastest growing K-pop groups on the planet, this fearless group of five (KIM CHAEWON, SAKURA, HUH YUNJIN, KAZUHA, and HONG EUNCHAE) bring their talents to Overwatch 2 this season, with the music video for LE SSERAFIM’s new single, Perfect Night, which will debut Thursday, October 26 at 9 pm PDT.
This collab also will feature a LE SSERAFIM-inspired game mode and exclusive in-game items, including Legendary hero skins. Details will be revealed on Monday, October 30, with content going live in-game on November 1.
LE SSERAFIM will also make an appearance at BlizzCon on November 4 for a special performance, including their new single, Perfect Night, in the BlizzCon Arena following the conclusion of the Community Night. Tickets are available at the BlizzCon official site.