10/10/2010 AT 10:55 AM ET
Musician Ben Harper filed for divorce from actress Laura Dern after five years of marriage, citing irreconcilable differences and seeking joint custody of their two children, PEOPLE confirms.
The papers, filed Friday, claim the pair separated in January, TMZ reports.
Dern, 43, and Harper, 40, were married in 2005 in Los Angeles. They have a 9-year-old son and a 5-year-old daughter.
– Mike Fleeman