Baby gives thumbs-up in ultrasound photo

A baby is already a viral sensation and hasn't even born yet. And It's all because of a gesture in an ultrasound photo.

The fetus was captured flashing what looks like the thumbs-up sign in an ultrasound picture taken last week.

The ultrasound image on Reddit was posted on August 28 under the username meancloth, saying "ultrasound result looks good."

Some have nicknamed the baby the "Fonzie fetus," after the iconic cool guy character in the classic television series Happy Days, according to AOL.com.

The father, Brandon Hopkins, told HLN-TV that his wife is expecting twins and the babies are due to arrive in January. The couple will find out the sex of the babies soon. Hopkins said his brother called and told him, 'Your babies are famous'!