Sometimes, things aren't so clear.

Da-dum...da-dum... In case you haven't heard, there's something in the water.

No, we're not talking about sharks--but if there were any, you wouldn't see them coming. That's because new blk. water is exactly as it sounds... black. The Canadian spring water owes its surprising shade to the addition of nutrient-packed fulvic acid. (Word around the water cooler is that it makes a great hangover cure because of its ability to quickly transport nutrients to cells.)

But let's get to the dirt. Blk. water already has some celeb chuggers: it was included in the Emmy Awards gift bag and is being represented by the Manzo brothers (à la Real Housewives of New Jersey fame).

We found the beverage at a D'Agostino's in Midtown and conducted a very scientific blind taste teste. We incorrectly guessed which was blk. 100 percent of the time, meaning there's no weird taste or smell. And we're told it won't stain our teeth!

We've crossed to the dark side.

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