BRITAIN'S Got Talent viewers were left floored after Simon Cowell pulled a rather odd stunt on tonight's show.
After weeks of captivating audiences with extraordinary and jaw-dropping auditions, Britain's Got Talent draws closer to crowning its Series 16 winner in the last semi-final.
Tonight more acts took to the stage, hoping to impress the judges once more and earn a space in the finals.
After the first act finished their performance - it was time for the judges to give their feedback.
But just minutes into the programme viewers were left seriously distracted by Simon Cowell who was making strange cat noises into the mic while Amanda Holden and Alesha Dixon were giving their criticism.
The bizarre stunt even forced Ant and Dec to pause while on stage and ask Simon to stop so that they could speak to the contestants.
Those at home watching were left baffled by this and took to Twitter to share their thoughts.
One wrote: "Oh my god, is Simon actually ok?"
A second added: "Simon mocking Alesha and Amanda criticising them as if he hasn’t just slandered them himself."
A third asked: "Sorry is Simon on drugs?"
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A fourth quipped: "Simon has lost it!!"
A fifth penned: "Someone needs to check on Simon. What the hell?"