- Source of Wealth: Music
- Age: 48
- Birth Place: Columbus, Ohio, USA
- Height: 1.83 m (6′ 0″)
- Weight: 180 lbs (82 kg)
- Marital Status: Married Allison Alderson (m. 2004)
- Full Name: Stanley Wayne DeMarcus Jr.
- Nationality: American
- Date of Birth: April 26, 1971
- Ethnicity: English
- Occupation: Musician and Songwriter
- Education: Lee University
- Children: 2 (Dylan Jay and Madeline Leigh)
Musician and Songwriter Jay Demarcus has an estimated net worth of about $50 million. He has gathered his wealth through his music career as a member of the trio Rascal Flats, his record producing career and acting as a guest star in the Series Crime Scene Investigation (CSI).
He is a musician and producer who was born in Columbus, Ohio in USA on the 26th of April 1971 as Stanley Wayne Demarcus Jr. He has been the pianist, harmony vocalist, bass guitar player and Song writer of the American Country Trio. He graduated from Tree of Life Christian School in Columbus, and married his wife Allison Anderson (Miss Tennessee USA 2002) in 2004. As a record producer, he has produced for artists such as Jo Dee Messina, English, James Otto and Justine Bridge among others. In 2006, he produced the release titled Chicago XXX for the band Chicago. He is the father of two children, Magdaline Leigh Demarcus and a son Dylan Jay Demarcus.