Jerome Harmon, better known as
J-Roc, is a hit radio producer from
Fort Worth,
Texas. He frequently collaborates with
Timbaland. Jerome Harmon has produced for
Beyoncé,
Justin Timberlake,
Jay-Z,
Chris Brown,
Keri Hilson,
Ashlee Simpson,
Mario,
Nelly Furtado,
Jamie Foxx,
Michael Jackson, and
Chris Cornell.