"It was the most beautiful, gorgeous, chic and romantic wedding I've ever been to," a source told Us. "The whole thing was sprung on the guests at the last minute, but you can tell a lot of time had gone in to the planning."
Deeley wore a "gorgeous" dress with "with ruffles all the way down," according to the source.
About 60 guests reportedly attended the ceremony, which was followed by a low-key reception.
"It finished before midnight and everyone was civilized and well behaved," another source told Us. "It wasn't a wild party."
Deeley and Kielty first met in 2002 when they hosted the U.K.'s Fame Academy reality series together and reportedly began dating about a year ago.
(Photo credit Fox)
DISCUSS AND COMMENT ON THIS STORY Reality TV World now offers Facebook Comments on our stories. To post a comment, log into Facebook and then 'Add' your comment. To report spam or abuse, click the 'X' in the upper right corner of the comment box. Get more Reality TV World! Follow us on Twitter, like us on Facebook or add our RSS feed.