Ex-"American Idol" judge Randy Jackson just got voted out ... of his marriage. His wife filed for divorce ... TMZ has learned.
Erika Jackson filed docs to end their 18-year marriage ... citing irreconcilable differences.
She wants full physical custody and joint legal custody of the 1 minor son, 17-year-old Jordan. They have a daughter who is an adult.
Erika also wants spousal support and she wants him to foot her attorney's fees.
This is Jackson's 2nd marriage. He has 1 other daughter from his prior marriage.
Jackson spent 12 seasons judging "American Idol" ... but announced he was leaving in 2013. He later returned as a musical mentor for the contestants.
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