2 Chronicles 35:24-25

24So his servants took him out of the chariot, put him in another chariot that he owned, and brought him to Jerusalem, where he died. He was buried in the tombs of his ancestors; all the people of Judah and Jerusalem mourned Josiah.

25Jeremiah composed laments for Josiah which all the male and female singers use to mourn Josiah to this very day. It has become customary in Israel to sing these; they are recorded in the Book of Laments.