On the outside, Jessica Simpson looks beautifully groomed doesn't she? And when was the last time you saw a picture when she wasn't flashing her pearly whites?

But Jess has surprised us by admitting that she doesn't brush her teeth!

Yuk!

She might be a celebrity and all but dental hygiene is a must! No matter who you are!

Telling iheartradio: “I don't brush my teeth.”

“I just use Listerine- and sometimes I'll use my sweater.”

A sweater?! Oh dear Jess!

But her teeth can get lucky sometimes when she decides to ,“brush every now and again, but my teeth are extremely powerful.”

Jess, it doesn't matter if your teeth are made out of iron, you still need to clean them!

What do you think about Jessica's revelation? Tell us on Twitter...

Jess isn't the only celeb that needs lessons in dental hygiene...