Randy Jackson's wife has filed for divorce.

The former 'American Idol' judge has split from his spouse Erika Riker after 18 years of marriage.

The former ballet dancer, who met Randy on the set of a music video, cited irreconcilable differences in court documents, obtained by gossip website TMZ.com, and is seeking full physical custody and joint legal custody of their 17-year-old son, Jordan.

She has also requested spousal support and wants the Grammy Award-winning producer to pay for her legal fees.

Randy also has a daughter, Zoe, 19, with Erika and another older daughter, Taylor, from his previous marriage to Elizabeth Jackson, whom he split from in 1990.

He married Erika in 1995 and news of their split comes just weeks after he sold his mansion in Tarzana, California for $1.9 million.

Randy announced he was leaving the US reality show last year after 12 seasons, but he later returned as a musical mentor for the contestants.

Mariah Carey, who recently separated from husband Nick Cannon, dropped Randy as her manager last year.

The 58-year-old music executive first met the '#Beautiful' star in the 1990s when he worked as an A&R man for Columbia Records.