The good girl gone bad has promised to be good for one night. R&B sensation Rihanna will shun skimpy outfits when she performs in Malaysia next month, the concert’s organizers said Tuesday, becoming the latest international star affected by the Muslim-majority country’s strict rules on performers’ dress. Recent concerts by Gwen Stefani and Avril Lavigne faced protests by conservative Muslim Malaysians over immodest clothes. Stefani eventually made what she called “a major sacrifice” at her show by donning attire that revealed little skin. Under government guidelines, a female performer must be covered from the top of her chest, including her shoulders, to her knees.