You are going to need to stop, revive and survive after seeing this hot as photo of Dr. Karl back in the day.
We all know Dr. Karl as the funky-shirt-wearing scientist and road safety icon, but did you also know that he was also once THIS MAN:
LOOK AT THIS.
The fact that he knows so much about science.
It’s honestly amazing.
Dr. Karl is now Australia's sweetheart. Look at him here with Santa -
and here on holiday -
and here being a lit AF rap scientist -
Love you, Dr. Karl!
Image: Dr. Karl Kruszelnicki Instagram