(CNBC) -- Voter registrations among young Americans shot up in the wake of pop megastar Taylor Swift's Instagram post urging her 112 million followers to get out the vote.

Swift's Sunday night missive, in which she also endorsed two Tennessee Democrats, catapulted the generally apolitical singer into the fray ahead of the November midterms. New data from Vote.org show Swift's voice is already making an impact.

The nonprofit group said nearly 65,000 Americans ages 18 to 29 registered to vote in the roughly 24 hours after the singer-songwriter's social media rallying cry.

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