Carrie and Brad's Most Awkward CMA Awards Moments

After declaring that "nothing is off limits tonight," Brad and Carrie added that they "refuse to joke about Renée" Zellweger, who was once married to country singer Kenny Chesney. "I mean she could be here. How would we know?! She's a master of disguise." The duo was referring to all the attention surrounding Renée's different look on the red carpet at an event in October.