Jeiris Cook used to sell mattresses. He used to manage a warehouse. He raised his three boys with his wife Jennifer. But in 2016, at the age of 37, in his Jefferson hometown in Morris County, he first taught himself how to play the guitar and started writing songs. Five years later, in 2021, his “Date Night” signaled his arrival. Next month, his “Unbreak My Heart” will be released and it reveals a fully-formed artist comfortable with his talent, and direct in his soulfulness.