Zac Efron and Rihanna relax at same hotel

By AYEESHA WALSH Updated at 2012-04-08 16:31:47 +0000

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SUPERSTARS Rihanna and Zac Efron have been enjoying life down under - whilst sunbathing on seperate balconies.

The pair are both in Australian city Sydney and just happen to be staying at the same luxury hotel.

The friends had just arrived in Australia - Rihanna flew in from Tokyo where she had been promoting her new movie Battleship, while Zac caught a plane from Los Angeles LAX airport.

Zac, 24, was seen sporting low slung brown chinos showing off his grey Calvin Klein boxers - and his hot body - as he relaxed with no top on.

He was seen listening to music on his iPad, sporting large white headphones and sunglasses and sipping on an orange juice, before getting ready to work out those muscles in a black vest and blue cap.

RiRi opted for a more understated look than usual, wearing a patterned headband and bold red lipstick to slightly brighten up her dull ensemble of black t-shirt and skirt with tights.