Taylor Swift's Eras Tour dancer Jan Ravnik — who earned an adoring, passionate following of his own while performing with Swift on the road — wrote on Instagram Dec. 12 that he's still processing the record-smashing tour's completion and revealed which concert prop he now keeps in his living room.

Taylor Swift has said 13 is her lucky number even when many still consider it unlucky. This year her birthday happens to fall on Friday the 13th.