Buckling down: Rihanna peeled off to shoot a music video for the second single from her most recent collection ANTI on Thursday, recording in a Miami manor

She's buckling down on her 72-date world visit.

Yet, amid her stop in Miami this week, Rihanna discovered time to fit in a shoot for the music video for her second single from new collection ANTI.

The star picked one of her raciest looks yet as she shot scenes at an extravagant house on Wednesday, going almost bare under a sheer robe and displaying a firearm.