"Marc is no longer dating model Shannon de Lima," his representative Blanca Lasalle told People.com. "The amicable breakup became official right in mid-January."
"The truth is they have been having a great time together, but it no longer worked," a source told the celebrity magazine.
"Marc is in a good place," the insider said. "Sometimes things work out and sometimes they don't."
Anthony has two children with his ex-wife Jennifer Lopez.
2014: The Year in Music [PHOTOS]