Acting on behalf of Houston, the singer's publicist Nancy Seltzer calls speculation that the exes are getting back together "a complete fabrication."
Seltzer pinpoints the rumors to a report in Wednesday's Chicago Sun-Times that said Houston and Brown had been spotted out and about in Georgia looking romantic.
Houston and Brown divorced in April 2007 after 14 years of marriage. During their tumultuous union, Brown was arrested on drug and alcohol charges, and Houston twice entered drug rehabilitation programs. Houston has custody of their teenage daughter, Bobbi Kristina.