Marc Anthony needs a new lady to serenade.The 44-year-old crooner has parted ways with his Venezuelan model girlfriend of one year, Shannon de Lima, 24."The amicable breakup became official right in mid-January,” Anthony’s rep Blanca Lasalle tellsPeople.Anthony began dating de Lima six months after announcing a split with his famous ex, Jennifer Lopez, to whom he was married for seven years. The former couple shares 4-year-old twins Max and Emme.The news of the breakup with de Lima comes just two days after Anthony reportedly had a brief reunion with Lopez, 43. The New York Post’s Page Six reports that Lopez and Anthony spent more than two and a half hours together at his hotel, The Mark. When Anthony finally emerged from the building, he "came out really quickly, with his head down, like he didn’t want to be seen,” a source told the gossip column.J.Lo reportedly stepped out shortly after, with a smug grin on her face, the source said.The actress/singer’s beau, 25-year-old Casper Smart, was reportedly back at her L.A. pad