Yesterday marked National Twins Day, which is why you may have seen double on your social feeds (huzzah! It ​wasn't​ just because you were hungover). And mama² Zoe Saldana participated in the fun, celebrating 9-month-old sons Bowie and Cy with the family portrait below (also featuring husband Marco Perego, of course).

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Matching onesies ​and​ matching hairlines—so cute!

From: Elle US

From: ELLE US