LONDON -- For many of us,Watch Young Wife Bai Jie the end of our birthday celebrations is heralded the moment the party ends and we have to clean up and deal with the inevitable champagne-induced hangover.

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But, if you're Queen Elizabeth II, you don't have to worry about any of that. Except, perhaps, for the hangover.

No, the Queen instead got a special portrait with her son Prince Charles to signal the end of her 90th birthday festivities.

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It's the picture of mother-son tenderness; the current monarch with the heir apparent.

But some people looking at the photo for the very first time didn't put two and two together.

Some mistook Prince Charles for his dad, Prince Philip. Awkward.

While others would have preferred Prince Philip over Prince Charles...

Others, however, were more interested in the touching family photograph.

Regardless of who's in the photo, it's not every day you turn 90.

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