Before they go head-to-head at the CMA Awards, see their most fun and flirty moments on social media
Credit: Issei Kato; inset: Kevin Mazur/WireImage
Updated: Tuesday May 14, 2013 | 11:00 AM EDT
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Apparently the two have found the secret to youth – through humor. As Shelton wrote in June, "Me: Damn.. Brad Pitt looks 25. What's HE doing?!! Miranda: Angelina.... #sheltonhouseholdconversation."
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