According to sources, the country singer was filming the reality singing competition when she received an email informing her the judge had upheld the prenup in her nasty divorce war.
Her estranged husband had been fighting the prenup and wanted it thrown out in the divorce, but a judge said no on Wednesday -- instead, ruling the contested premarital agreement would stay in place.
Insiders reveal Clarkson let out a little scream after reading the exciting email, and both Shelton and Grande couldn't wait to join in on The Voice set celebration.
The judge's prenup decision is a major win for Clarkson because it means she will be able to keep everything she earned during their 7-year-marriage.
Clarkson's war with her ex was personal to Shelton because Blackstock wasn't only Kelly's manager -- but he was Blake's too. Sources claim Shelton recently terminated his working relationship with Blackstock.
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As for Clarkson's former husband, he's not hurting when it comes to cash.
The talk show host has been ordered to give Blackstock a boatload of money every month to the tune of $200,000 per month, which breaks down to $150,000 in spousal support and $45,601 in child support.
Clarkson is also on the hook for her children's pricey education.
The judge recently ruled the Because of You singer will pay 70% of the tuition and other costs associated with their children's private school education.
The reason for this is because Blackstock makes significantly less.
While Clarkson brings in a whopping $1.5 million each month, her ex's monthly income comes in at just $10,000.
Blackstock is now living on their Montana ranch and is a full-time ranch hand at the property. Now, that Blake's officially given him the heave-ho as his manager, Blackstock is no longer making that showbiz money.
When it comes to their Montana ranch, Kelly is not responsible for the payments. The judge ruled Blackstock will be solely responsible for footing the $81,000 a month bill.