Leading up to the release of her new single, 'Hold It Against Me,' Britney Spears has been hinting and winking at her legions of fans, but she's kept a surprisingly tight lid on the single itself. Sure, the demo dropped last week, but unlike countless other artists, Spears had been able to keep the final version under wraps -- until now.

A day ahead of its official release, 'Hold It Against Me' has found its way online, and it seems Spears has yet another big hit on her hands.

Enjoy it while you can!