Katy Perry is a sexy Santa Claus in ‘Cozy Little Christmas’ shoot

Katy Perry is giving Mrs. Claus a sexy makeover.

The “Never Really Over” singer, 35, teased the music video for her new song “Cozy Little Christmas” — and set pulses racing — with a festive Advent calendar snap on Sunday.

In her Instagram photo, Perry channels the holiday spirit in a bright red bodysuit, appropriately trimmed with white ostrich feathers and bedazzled with crystals. The look, which was all custom-created by Zgi Cinar, also includes a tiny Santa hat, opera-length gloves and sparkling stockings.

The Advent calendar outfit is just the tip of the iceberg when it comes to Perry’s merry spirit; in a teaser for the “Cozy Little Christmas” music video, she sports dozens of ornaments buried in her sky-high bouffant hairdo, a red hoop skirt adorned with tinsel and wreaths and a very festive candy cane-style bodysuit — which she wears while swimming in a peppermint martini glass, Dita Von Teese-style.