Justin has revealed how he left grown men in tears as he sung a song he penned for the occasion as Jessica walked down the aisle.
Of the serenade, he told Hello magazine: "I figured if there was something I was going to be able to offer, it would be to sing her down the aisle.
"Grown men were weeping. Hopefully it's because I didn't sound bad."
Describing seeing his bride walk down the aisle at the Borgo Egnazia resort in Puglia, in her pink Giambattista Valli gown as 'the most beautiful thing I have ever seen', he added of the ceremony: "To hear all of our family and friends cheering at extremely loud, inappropriate decibel levels, that became the pinnacle.
"It felt perfect. It felt like everything came together."
The full article appears in this week's Hello magazine, out now.
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