What's most surprising is there didn't appear to be a magazine crew in attendance - snapping away for a future tabloid mag spread.
Sources close to the couple say that they specifically chose to head to Las Vegas and wed privately to show that they are genuinely in love and the move was not a publicity stunt.
However, Katie's TV show crew were of course there to capture every moment.
At first it would be easy to think this was just a joke - similar to that 'hilarious' joke that involved Alex dressing as Katie at a book signing last year.
But her agents have released the following statement: "Katie and Alex are delighted to announce that they got married in a private, simple ceremony at 4pm (PST) on February 2nd in Las Vegas."
The spokesperson continued, "Their decision to marry has not been made with any pre-conceived commercial plan or media deal in place, and their reason for getting married is purely down to their love for each other."
Peter was on Radio One this morning and was asked his opinion on the quickie wedding. He said that he found out about it last night after a book signing and that all he cares about is making sure his children are surrounded by loving people.
When drawn on the subject he avoided specifically making a comment about Katie but when presenter Chris Moyles said he thought the whole marriage thing was a joke and wouldn't last Peter did not correct him, instead there was a loaded silence on air.
So people - what do you make of all this?!
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