Trevor Moran is not quite sexy just yet, but he's adorable and he knows it.

The YouTube sensation and dancing aficionado left the judges with their jaws ajar and the crowd on their feet at “The X Factor” auditions Thursday night.

Moran, 13, put on a very flamboyant and energetic rendition of LMFAO’s “I’m Sexy and I Know It”, shaking his booty and bouncing around on the stage.

“I’m not entirely sure that was age appropriate [but] I think you are going to be remembered,” said music executive and ‘The X Factor’ creator Simon Cowell.

Fellow judge and music label giant L.A. Reid congratulated Moran telling him he embodies “everything that ‘The X Factor is.’”

“Listen, you own that stage,” said Reid. “You rocked the house. Congratulations to you.”

Former Disney starlet Demi Lovato and singer Britney Spears also gushed about his performance.

“You were so much fun to watch,” said Lovato. “I was dying over here. You are too cute,” she said.

“I liked you a lot,” Spears added. “I thought you were completely adorable and I loved watching every minute of it. It was very entertaining.”

Moran joins Sophie Tweed Simmons, the daughter of KISS rock star Gene Simmons, who on Wednesday showed she has the pipes to become the next big superstar, singing her rendition of “Make You Feel My Love” by Adele, a song originally written by Bob Dylan.

Simmons, 19, had previously showed off her singing abilities on the Simmons family reality show “Family Jewels.” But for her, going on “The X Factor” meant stepping out of the shadow of her famous father.

“I really just want to step out of being the daughter of the guy from KISS,” Simmons said. “I want to be my own person and hopefully this is the way to show the world who I am.”

“I grew up with music, but I did not want to sing ever before because I did not want my dad’s help with it,” she added.