Kelly Clarkson will pay almost a quarter million dollars per month to her ex-husband as a result of their divorce. At least, that's what TMZ has learned.Recently, the judge in her divorce signed off on documents formalizing the temporary support and spousal Kelly will receive from Brandon Blackstock. It's almost $200k/mo. According to the documents. According to the docs, Kelly was not divorced. The ruling came in April. It merely formalized the payments she had made to her ex since June last year.According to the documents, Brandon will receive $150k in spousal and $45,601 each for their 2 children. It's hard to see that as a discount for Kelly. However, Brandon had requested $436k per monthly. With that in mind, it's a win for KC.To cover Brandon's attorney costs, she will have to pay a $1.25m one-time payment.We were told that Brandon will receive only 2 years of spousal assistance once the divorce has been settled. This is based on how long their marriage lasted. Their prenup is the unresolved matter. If it is valid, Brandon will be granted whatever is in the prenup.Kelly also received primary custody of their children, 6-year-old River and Remy, a while back.