Supermodel Rachel Hun-ter has filed for divorce from Rod Stewart, four years after separating from the rocker.

New Zealand-born Hunter cited irreconcilable differences in papers filed in the Los Angeles Superior Court.

The couple will share custody of their 11-year-old daughter, Renee, and eight-year-old son, Liam.

They have yet to negotiate a financial settlement and division of assets. The singer has amassed a multi-million pound fortune after a long career in showbusiness.

Hunter, 33, married the rock star in December 1990 at the Beverly Hills Presbyterian Church. She broke up with him in 1999 after reportedly saying she was too young to settle down.

Stewart, 58, is currently dating model Penny Lancaster