One of Fortnite Season 10's Boogie Down challenges asks you to dance behind DJ decks while wearing the Platinum outfit, available at Tier 47 of the Battle Pass. Decked out in this outfit, you must travel to the disused factories south of Shifty Shafts to find a DJ facility that will allow you to complete the challenge.
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This challenge is only available in Prestige version, and will only ask you to go to a specific place, with a specific outfit in order to perform a dance, nothing very complicated in short.
As a reminder, it's easier to complete this challenge in Team Rumble because thanks to respawning, you won't have to worry about dying.