By Julie Moult And Lizzie Smith For Mailonline
Published: 13:33 EST, 28 September 2014 | Updated: 13:33 EST, 28 September 2014
The wife of music legend Randy Jackson's is set to receive as much as $20 million in her divorce settlement.
Erika filed legal documents to end her 18 year marriage this week citing irreconcilable differences.
According to TMZ, massively wealthy Randy had no prenup in place when the couple married in 1995.
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Wealthy woman: Erika Jackson may receive half of Randy's $40 million fortune following the breakdown of their 18 year marriage
The American Idol judge earned around $5 million a year towards the end of his 12 year tenure on the successful Fox show.
And in addition, he has amassed $40 million thanks to his collaborations with musical greats including Madonna, Whitney Houston and Mariah Carey, the website reported on Sunday.
The Grammy-winning producer started out as a session musician for the band Journey.
Still close: The former couple are still sharing a home and the split is amicable
Randy Jackson's family at Lili Claire Foundation gala (archive)
Single man: Jackson seen in New York this week looking a little glum
Despite the split, the former couple are still happily living together with no allegations of infidelity.
A source told TMZ: 'It's not gonna be all Amber Rose and Wiz Khalifa.'
Former ballet dancer Erika is seeking full physical custody and joint legal custody of the pair's 17-year-old son Jordan. The couple also have a 19-year-old daughter, Zoe.
She is also asking for spousal support and for Jackson to pay her attorney's fees. She also wishes to return to her maiden name of Riker.
The break-up comes several weeks after Jackson sold his estate in Tarzana, California, for $1.9million.
Big audience: Randy with Ryan Seacrest on American Idol, the show that made him a household name
This was a second marriage for the 58-year-old who was previously married to singer-songwriter Elizabeth Jackson, the mother of his oldest daughter Taylor.
Jackson has been active on Twitter this week, but has made no mention of his marriage split.
Instead he has been keeping busy partying with stars including the new Miss America, and hitting the studio.
Keeping busy: Jackson has been active on Twitter this week, but has made no mention of his marriage split
Socialising: The producer snapped a selfie with Miss America at a Hollywood bash this week
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