Did you do a double take? Us too!
Wishing Karlie a happy 24th birthday, Eva posted the hilarious snap of the pair comparing their legs.
"Happy birthday to this badass with the long legs! (Oh I’m talking about @karliekloss because this picture can be confusing)," wrote the 41-year-old. "We’re basically twins!!! Have a blessed day, month, and many years to come!! #BirthdayGirl #Lorealistas."
Karlie has opened up about her height in the past, admitting she has learnt to embrace wearing flats.
"I feel like I can conquer the world in a pair of flats," she said. "I think I would look like a crazy woman walking around N.Y.C. in heels since I’m 6-ft-1-in. and 6-ft-4-in. in heels. Plus, I take the subway, so I’d stand out even more!"