Katherine Heigl Looks Young, Fresh-Faced In Throwback Photo

09/19/2013 02:27 pm ET

It's Throwback Thursday and you know what that means ... time for some celebrity Twitter photos.

Katherine Heigl, 34, is the latest star to share a snapshot of her younger self for #TBT, posting:

In the pic, a brunette Heigl is all smiles as she poses on the set of "Wish Upon a Star" at age 17. She looks A LOT different than her days on "Grey's Anatomy."

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