And that made fellow judge Simon Cowell look like he wanted to hit David.
And no wonder.
Cristian Spiridon singing Sex Bomb was not one of the highlights of the night. He couldn’t sing and he couldn’t dance like a sex bomb.
But David Walliams loved Cristian the minute he saw him, waving to him as he came out on to the stage.
“For some reason David’s excited,” Alesha Dixon said.
“I love your boots,” David said.
“When I perform I like to be sexy,” said Cristian, who admitted he’s had his teeth whitened and work done on his face.
“I work as a waiter but I want to become a superstar,” he told the judges.
Cristian’s bid for superstardom didn’t start well, though.
Alesha and Simon buzzed as Cristian wailed the introduction to Sex Bomb.
Cristian sang a few words and Amanda Holden buzzed.
But David was dancing and working the audience, getting them on their feet.
Simon was determined to put a stop to Cristian’s performance, though and marched towards David’s buzzer.
David was equally determined to prevent Cristian getting four buzzes but Simon found a way to David’s red buzzer.
Four buzzes and Cristian should have been out.
“No!” shouted David. And the audience booed.
Then David quickly turned and slammed his hand on the Golden Buzzer.
“No!” shouted Simon.
“Yes!” shouted David.
The audience cheered.
Ant and Dec looked confused.
Golden confetti rained down on Cristian, who also looked a bit confused.
“No!” shouted Alesha.
“Oh, yeah!” David shouted right back in her face. Alesha laughed but Simon looked like he couldn’t quite believe what David had done.
“What the bloody hell did you do that for?” he asked David.
“Because Cristian is going to win Britain’s Got Talent. Yeah!” shouted David.
Simon didn’t agree.
“I’m not being rude, Cristian, but the act is appalling,” Simon told the, er, singer.
Amanda felt differently.
“Listen, we have to push the buzzer when we really believe in something. It’s up to each individual judge to have a passion for somebody and if you’re David’s passion then well done to you,” said Amanda.
‘You’re through to the live shows, congratulations,’ said Alesha in disbelief.
Cristian jumped for joy and promised David he would work very hard.
David gave him a hug and Cristian left the stage.
As David returned to his seat Simon glared at him.
“What?” asked David.
“What do you mean, ‘What?’,” said Simon.
“It’s not just about the voice, Simon,” said David. “It’s about personality as well.”
“Congratulations, darling,” Amanda said to David.
“Why are you saying that?” asked Simon incredulously.
It was the last act of the show. Everyone got ready to go home.
“Bye Simon, love you,” shouted David.
“Oh, shut up, I don’t love you,” Simon replied.
It wasn’t all bad, though.
The second round of auditions also featured posh violinist Lettice Rowbotham, who brought a big smile to Simon’s face, 15-year-old singer James Smith, a young knife thrower who took aim at Simon and amazing Canadian magician Darcy Oake.
“I think we’ve uncovered a star with you,” Simon told Darcy.
Click here for the best and worst of the night in pictures.