By EW Staff
Updated October 10, 2010 at 05:19 PM EDT

Actress Laura Dern (Recount) and musician Ben Harper are ending their 5-year marriage, according to

Harper, 40, filed for divorce Friday, citing irreconcilable differences, and seeks joint custody of their two children: a 9-year-old son and 5-year-old daughter. Harper and Dern, 43, separated in January, reports.