It was no white Christmas for Katy Perry
The newly blonde
"Teenage Dream" singer, 27, soaked up some tropical sun on Sunday, flaunting her body in an itty-bitty bikini while frolicking through the ocean in Hawaii.
The pop star was vacationing on Kauai in a private rented luxury villa.
As for the two, an onlooker tells us, "Katy and Russell looked very happy when they stepped off their private plane in Kauai before Christmas weekend."
During her time at the beach, Perry was joined by BFF Markus Molinari
, among other friends. (Russell was not pictured in the photos at the beach.) And she appeared to enjoy the water, while also taking time to relax on the sand. – Dahvi Shira