The divorce, which marked the rocker’s third, became final on Friday, Aug. According to the settlement agreement [via People], the couple negotiated “an amicable settlement of all issues involving property and maintenance rights, the custody and support of their children, and all other issues.” Mellencamp and Irwin were married 18 years and have two sons — Hud (17) and Speck (16).In January, Mellencamp’s rep said both the singer and his now ex-wife planned on staying in the state of Indiana where “they will continue to raise their children.” Leading up to their divorce, the Mellencamps shared a 56-acre estate in Lake Monroe, which is close to Bloomington, Ind.It’s the latest insult added to injury for Irwin, who has seen Meg Ryan getting pretty cozy in NYC and in Martha’s Vineyard with John.The actress has been seeing Mellencamp for a few weeks now since his September separation according to People and things continue to simmer for Meg and Mellencamp.The relationship has apparently advanced from minutes to memories in swift fashion.Mellencamp and Brinkley were first spotted together on September 14 dining at the Bowery Hotel in New York City, although Gotham’s notoriously breathless tabloids failed to note whether or not canoodling took place.

26, show at NYC's Madison Square Garden, about his ex-wife Christie Brinkley dating John Mellencamp."This was only their first date because John was in NYC but so far so good.He obviously thinks she’s gorgeous and she thinks he’s so smart and charismatic." PHOTOS: How these celeb couples first met Family is also a huge factor for both Brinkley and the "Jack and Diane" singer.Model Christie Brinkley arrives at the premiere of Ides of March in New York October 5.Brinkley, 61, and John Mellencamp, who just turned 64, were recently spied departing an Upper East Side Italian restaurant on Saturday night holding hands.Besides his two children with Irwin, Mellencamp is also father to three other children from two previous wives."A little ditty 'bout John and Ryan…" Rocker John "Cougar" Mellencamp and actress Meg Ryan, 49, are collaborating…on a romance. "They are indeed dating," a source tells the new issue of Us Weekly (on stands Wednesday).