Sydney is in for a treat! Rihanna and Zac Efron are both in Sydney and both find themselves in the same hotel.

Two of the most famous Hollywood celebrities were spotted enjoying the Australian afternoon sunshine as they lounged in their respective balconies in a plush hotel. Zac Efron was however shirtless while enjoying some downtime with his Ipad while Rihanna took some snaps from her view of the hotel probably to post on her Twitter.

Rihanna was casually in a black t-shirt with a folded bandana tied around her forehead. The 24-year-old star has just arrived from Tokyo after promoting her debut film "Battleship."

Rihanna and Zac Efron checked the famous Sydney Opera House and Sydney Harbor Bridge from their hotel view upon their arrival. Although it is unknown if the two were aware of each other's presence in the hotel, it is safe to say they seem to be friends. Zac was among those who celebrated with Rihanna on her 23rd birthday last year.

Meanwhile, the Barbados born beauty was also spotted sharing a hug with friend and co-star Brookly Decker on a boat. The "Rude Boy" singer looked relaxed and naturally beautiful with her newly colored black hair. She wore a denim button down paired with shorts and white sneakers.

The two and some of the movie cast took a cruise around the Sydney Harbor as part of their promotion for the movie "Battleship."

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