Kelley's wedding is a big surprise for fans of the "Cruise" singer, as he didn't publicly reveal that he was planning on marrying his girlfriend, in part because they didn't have a traditional engagement.
"The whole process has been non-traditional. There was no official proposal or exchanging of rings," he divulged to People. "We had just fallen in love, and I knew I couldn't live without her. It sounds like a terrible cheesy movie, but when you know, you know!"