The 30 smartest celebrities in Hollywood

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Natalie Portman has been published in multiple science journals.

And before John Legend was a Grammy Award-winning artist, he worked for a consulting firm.

We rounded up 30 of the smartest celebrities in Hollywood who are high-school valedictorians, Ivy Leaguers, MENSA members, and certified geniuses in their own rights.

Here they are:

(Melissa Stanger originally contributed to an earlier version of this slideshow.)