AceShowbiz - Rihanna is scrambling to find a modest stage costume after she was asked to tone down her raunchy live act for an upcoming performance in the United Arab Emirates on New Year's Eve.

The "Umbrella" singer, who is known for her daring and revealing outfits, will have to cover up when she takes the stage to ring in the New Year at the Emirates Palace Hotel in Abu Dhabi - so as not to offend any conservative fans. And she's struggling to find something suitable - because her wardrobe is overflowing with eye-popping numbers.

A source tells Britain's Daily Mirror, "Rihanna is tearing her hair out over what to do - she wanted to put on her most eccentric and provocative show yet. She knows that she'll have to compromise her style to fit in with local traditions - but a huge part of her show is her sexy stage gear. The dress code in Abu Dhabi does not encourage excessively revealing outfits."

The 21 year old, who is reportedly receiving $500,000 for the gig, faced protests in Malaysia earlier this year (Jan 2009) over a scheduled concert until she vowed to tone down her risque show and conform to strict dress and dance rules.