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!"
Kelley says that he's known his now-wife, whom he dated for seven months prior to their marriage, for over three years. They were both in relationships when they first met.
"I always knew in my heart that if I were single, then I wanted a chance with her," Kelly said. "She was my dream girl."