A LITTLE boy has left the internet in hysterics by interrupting a happy couple's wedding vows - to say he "needs to poo".
Aussies Hannah and Ben Lienert wanted to involve their three-year-old son in their wedding, making him page boy for the day.
But the lad stole the limelight from his parents, when he tugged on his dad's arm with an urgent update about his toilet habits.
Luckily, his aunt stepped in and rushed him to the toilet, while giggling bride Hannah asked: "What just happened?"
Even the celebrant quipped: "That is the definition of being upstaged."
Hannah posted the video on YouTube in December 2015 and it's been trending again this week.
The clip was captioned: "Children and weddings don't always mix, but they sure know how to make them memorable."
Speaking to the , the bride said her wedding was "planned to a tee".
But she added: "I learned that children are unpredictable and the best laid plans don't often work."
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