Demi Lovato Tweets Amazing Throwback Photo of Simon Cowell (and His Big Hair)

Find out what the X Factor judge had to say in response!

Demi Lovato is getting a head start on her Throwback Thursday game.

The singer enlightened her over-14 million followers on Twitter today with a photo that brought both laughs and gasps, and will forever remain embedded in our brains—a throwback photo of her pal, Simon Cowell.

And it is amazing.

Lovato tweeted, "I can't..... Umm... Care to explain @SimonCowell???"

The photo shows a young Cowell, strutting a 'stache and full head of hair that almost reaches his shoulders, while standing all macho-like while wearing a tight T-shirt that says "mechanic" with cartoon tools on it.

The X Factor judge didn't have an explanation for the photo (and really, it doesn't need one), but he did have a message for his fellow reality star.

"Someone is going to be happy sitting next to me today," he tweeted.

Uh-oh...