Recommended VideosAt the very end of today’s official trailer for Overwatch’s season four, Heroes of Busan, a quick teaser appeared to show K-pop girl group LE SSERAFIM’s logo popping up on various screens throughout the South Korean-based map. Blizzard soon confirmed a new collaboration with the group is coming in season four, likely to coincide with LE SSERAFIM performing at BlizzCon’s closing ceremony in Anaheim, California on Sept. 13, marking the return of the convention for the first time since. LE SSERAFIM’s popularity clearly translates quite well into Overwatch, as this is now the third separate collaboration between the girl group and hero shooter. LE SSERAFIM fans are already in a frenzy over the short bit of music you can hear at the end of today’s trailer, as the closed captioning teases “[LE SSERAFIM music plays].” Possibly, especially considering their first turn at BlizzCon was highlighted by the release of the legendary collab song with Overwatch, “Perfect Night.”