SAN SIMEON, Calif. — Tourists are giving way to dancers as a production crew takes over Hearst Castle, where Lady Gaga is shooting a big-budget music video.

The San Luis Obispo Tribune said filming is taking place this week at the indoor Roman Pool and the outdoor Neptune Pool.

The pop diva had yet to be seen as crew members carried in fake flowers and a giant plaster seashell Tuesday.

Shoots at the state historical site are extremely rare. Gaga is donating $250,000 to the Hearst Castle foundation, underwriting a $25,000 water supply study and paying fees.

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