The singer and actor has filed for divorce from the Love on the Floor singer, citing "irreconcilable differences" as the reason for the split.
The pair's separation date is listed as "to be determined" in documents filed at Los Angeles Superior Court.
Marc has requested joint legal and physical custody of the couple's four-year-old twins Max and Emme.
He has also asked the court to deny Jennifer spousal support, if she requests it.
Since their separation in July Marc has found love again with model Shannon de Lima. Meanwhile J-Lo has started a romance with her backing dancer Casper Smart.
Though Marc and Jennifer have called time on their romance, the former couple are still working together on their Latin TV star search, Q'Viva! The Chosen.
Jennifer and Marc: harmony over for the pop star couple