Britain's Got Talent viewers saw the funny side, as Simon Cowell was mocked over a blunder in the previous episode.
Tuesday night's live semi-final saw host Ant McPartlin tease judge Simon about his struggle to drink through a straw on the previous night, with the moment leaving fans baffled.
Monday's semi-final showed Simon watching the stage while going to take a sip of his drink, before moving his glass around in a circle.
Trying to locate the straw with his mouth, while not paying attention, he kept missing it and proceeded to move his drink around in circles before finally taking a drink.
The moment did not go unnoticed by baffled viewers who asked what was going on, and on Tuesday night it was brought to Simon's attention.
Ant decided to mock Simon live on the show, as he pretended to show him how to use a straw.
Taking his drink from the desk, he then handed it back to him while holding the straw and said: "Simon there's your straw. Do you know how to use it? Pop it in your mouth, drink."
Amanda Holden was heard screaming with laughter, while Ant and Dec were also amused by the joke.
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Later in the show, Simon asked: "What was going on with my straw last night?"
Ant wasted no time in quipping: "You tell us... I don't think it was the straw, I think it was what’s in the glass..."
Amused by the moment, one viewer tweeted: "Ant telling Simon how to use a straw," as another said: "Not the straw."
This wasn't the only thing viewers were distracted by, as judge Bruno Tonioli was heard appearing to swear during an act's performance.
As daredevil Andrew Stanton invited all four judges to the stage for his act, viewers believed they heard him shout "f***ing hell"."
The moment did not go unnoticed, and one fan tweeted: "Bruno just said 'f***ing hell Simon, not again'," as a second said: "Did he just say f***ing hell???"
Another said: "I thought I heard Bruno swearing to Simon on stage about the act f***ing hell simon not this again or something along those lines."
Britain's Got Talent's live semi-finals air all this week at 8PM on ITV1 and ITVX.
