Chances are you're pretty familiar with this lady:
With so much talk about her smile, maybe you've failed to notice that she doesn't have eyebrows!
Currently, no one's quite sure why they're missing.
Researchers have suggested several reasons, from Renaissance fashion trends to the paint simply fading away over time.
Anyway, this does provide us with a unique opportunity — to have fun styling Lisa with some new brows!
1. Beyoncé
Obviously Queen Bey's brows add a new level of sass to da Vinci's famous painting.
2. Jon Hamm
YES. No words can describe how right this looks...
3. Lily Collins
Lily's sweet eyebrows add an endearing element to Mona Lisa's face.
4. Darren Criss
It's funny how Darren's eyebrows have a completely different feel on anyone other than him.
5. Michelle Obama
Michelle changes the style of her brows often, but this look of hers is by far our fave.
6. Robert Pattison
These eyebrows are suprisingly elegant. New trend, maybe?
7. Miley Cyrus
#BlueBrowsForever
8. Yeezus
This look could go either way. Kanye rocks them though!
9. Cara Delevingne
You didn't honestly think you could get through this post without a nod to Cara's famous brows, did you?
10. Patrick Star
Bikini Bottom's famous eyebrows are a definite yes.