This is not a drill!

Mary-Kate and Ashley Olsen took over Sephora's Instagram account Wednesday, and kicked things off by sharing a selfie!

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"Rise and shine. First public selfie ever," the 29-year-old twins captioned the black-and-white shot of themselves wearing their signature oversized sunglasses.

The Elizabeth and James designers do not have personal social media accounts, and rarely make public appearances, so this selfie is a major milestone for the pair.

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As expected, fans of the Full House stars could not contain their excitement. "This is revolutionary," one follower commented while another added, "Currently witnessing some of the most important history that could ever be made."