The Victoria's Secret alien is so hot that she can't be of this world, and she literally might not be. Just Google "Karolina Kurkova bellybutton" and you'll get conflicting photos of Kurkova with and without a navel, the supreme signifier of humanness. 

The truth is, she actually doesn't have one. When she strutted down the Victoria's Secret runway in Miami in 2008, viewers were shocked to see Kurkova's perfectly smooth stomach. Her reps say that she had an operation as infant, but we think they're just covering up that fact that she's actually the female Kyle XY.