Fortnite has added a special guest star, Mariah Carey, as part of its Winterfest event. The iconic singer can be found standing in the open, but her location is not marked on the map.
To locate Mariah Carey, look for her dancing near a specific area that has been highlighted. Interact with her to receive free rewards, including Shields, Medkits, and other healing supplies.
However, be aware that she won’t assign you any quests or tasks, so your visit will only result in free items. Be prepared for battle, as you won’t be the only one visiting her, and scan the surroundings beforehand to avoid ambushes.
Once the Winterfest event ends, Mariah Carey will likely disappear, making this opportunity a short-lived one.
Source: https://www.oneesports.gg/fortnite/how-to-find-mariah-carey-in-fortnite