Sean Penn, Justin Bieber Dye Their Hair Blond (NEW PHOTOS)

First, Jake Owen shocked everyone by chopping off his signature long hair. And now, two more male celebs have made surprising mane changes: Sean Penn and Justin Bieber. The stars have captured our attention with their new dos.

Sean Penn Blond hairRindoff/Dufour/Getty; FameFlynet

Penn recently debuted a lighter, sun-kissed hue that has us reminiscing about his Jeff Spicoli days. It’s now also a shade closer to girlfriend Charlize Theron‘s hair.

RELATED PHOTOS: Weigh in on the latest celebrity hair makeovers

Justin Bieber platinum hairPierre Suu/Getty; Stoianov/FameFlynet

But Bieber gets the award for most dramatic switch-up, going all-out platinum. Could it be his breakover move to get Selena Gomez‘s attention? Or maybe he’s trying to channel Eminem circa 2001? Or perhaps it’s just going to be his new hair from now on. Regardless, we’re very intrigued by his new hue, which he unveiled on his Fahlo account Friday.

Justin Bieber platinum hairCourtesy Justin Bieber

What do you think of the new blonds? Whose look do you like better? Share your thoughts below.

–Brittany Talarico