Kelly Clarkson's recent step back from her talk show isn't a cause for alarm despite all the online rumors. The singer has been absent from "The Kelly Clarkson Show" since early last week -- disappearing suddenly just before a show and abruptly forcing actor Simu Liu into an impromptu hosting role. Kelly returned for a couple episodes last week ... but, she hasn't been onstage since March 5 -- and, it led to a whole lot of online speculation about her health. Many called on NBC -- the Clarkson Show network -- to release a statement about her health ... fearing the worst for the star. Sources with direct knowledge told TMZ that Kelly herself is completely fine. She's been dealing with a personal matter that doesn’t directly involve her. According to reports, she’ll be back in the studio and on the air today.