Katy Perry makes a splash in behind-the-scenes snaps while wearing extravagant MERMAID costume for Las Vegas hotel ad

Katy Perry shared some behind-the-scenes snaps of herself in a mermaid costume for her new Resorts World commercial.

The 36-year-old pop act appeared just as she did in the ad, including the long blonde locks styled by Jesus Guerrero.

Her face was sharpened by a makeup job from Michael Anthony who had delivered an aquatic feel with Katy's cosmetics.

In her new Instagram album Katy could be seen in costume lounging on a folding chair on what appeared to be the warehouse set of the ad. One particularly evocative snapshot showed her lounging on top of a box full of LED supplies from the brand ROE.