August 15, 2011 at 06:41 PM EDT

John Mellencamp is officially a free cougar. His divorce with estranged wife Elaine Irwin is now official, People reports. The couple had been married 18 years; they will share custody of their 17- and 16-year-old sons.

The settlement agreement states that 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.” Since breaking up with Irwin, the singer has been dating Meg Ryan.

Read more:

John Mellencamp’s marriage crumbles down

John Mellencamp separates from wife after 20 years

You May Like