![Michael Phelps in Under Armour's commercial "Rule Yourself"](http://cdn-mf0.heartyhosting.com/sites/mensfitness.com/files/styles/photo_gallery_full/public/michael-phelps-rule-yourself-under-armour-ad-main.jpg?itok=qIp19ftw "Michael Phelps in Under Armour's commercial "Rule Yourself"")
Sometimes, even the toughest American sports heroes get a little misty. Even the ones who spend all their time in the water.
My Under Armour commercial drops tomorrow. The emotional reaction from Nicole & me the first time we saw it!
Posted by Michael Phelps on Monday, March 7, 2016
Under Armour founder Kevin Plank surprised Michael Phelps and his fiancée, Nicole, with a screening of "RULE YOURSELF," the new ad featuring Phelps.
He was visibly stunned by the ad, which is set to "The Last Goodbye" by the Kills. "We're in tears," he says. "That commercial shows a lot of amazing things about me that the world's probably never seen. As I said in my [interview with Joe Buck], 'The world is gonna see the real Michael Phelps.' And that's what I'm excited for."
The 22-time Olympic medalist has said that this summer's Rio games will be his last.
"It's about sacrifice," she says as they both wipe away tears. "And being able to see it on screen is really cool."
