Brandon Blackstock and Kelly Clarkson attend Simon Cowell Honored With Star On The Hollywood Walk Of Fame event on Aug. 22, 2018. the music manager is requesting $436,000 a month in spousal support and child support from Kelly. A source tells People Blackstock, 43, has been “unreasonable” in his requests for support and attorney’s fees from the 2002 American Idol winner. Credit: FayesVision/WENN.com