Kelly Clarkson is heading to splitsville after nearly 7 years of marriage to Brandon Blackstock.The singer filed divorce docs exactly one week ago in L.A. County Superior Court to end her marriage to the talent manager. The soon-to-be-exes tied the knot in October 2013 in Blackberry Farms, Tennessee and have 2 children together — 5-year-old River Rose and 4-year-old Remington. Brandon has 2 children from a previous relationship.Kelly’s filing comes a little over a month after the couple put their L.A. home on the market for $10 million— a listing that now seems pretty clearly tied to the split.They’re also still trying to unload a Nashville mansion — but that one’s been on the market for nearly 2 years now, so probably not related to their divorce.Kelly and Brandon reportedly met in 2012 at Super Bowl XLVI courtesy of Brandon’s dad … Narvel Blackstock, who manages Kelly.After 10 months of dating, Brandon popped the question and Kelly confirmed the news in December 2012 while announcing it to her fans on social media.