Orange is the New Black [1] star Laura Prepon has tried every hair colour [2] in the book. She's gone jet-black while playing Alex Vauss and both blond and red as Donna on That '70s Show. Considering how good she looks in every shade [3], you might be wondering which one is her natural hue. Luckily, the actress shares plenty of childhood throwback photos on Instagram, like the one above, so it's safe to say she's definitely been a redhead from the start.

Check out all the hair colours she's worn, ahead.