Kane Brown and Katelyn Jae are the latest country twosome to prove that the couple who sings together, stays together. On Thursday, Brown revealed that the two have cut an upcoming duet titled "Mad at This World." Brown raves that Jae's his "secret weapon" and describes the upcoming track as different from his most recent solo single, "Worldwide Beautiful." Says Brown, "It's basically a song calling out everything else that’s happened in 2020, from the tornados destroying Nashville, California getting hit by those fires, and all of that... It’s basically saying, ‘How could I be mad at this world when this world gave me you?'" Brown fist hinted about a marital duet back in May when he tweeted, "Kane Brown featuring Katelyn Brown in the works." Brown hasn't said when "Mad at This World" may be released.