Olsen heads to the Middle East for the grand opening of a luxury hotel in Dubai. Plus: Joel & Nicole, Madonna, Beyoncé and more


Also making a colorful appearance at the Tattoo Heart Collection benefit Wednesday: Rihanna, showing off a red Gucci dress and her own fresh ink. The R&B star, who got the Maori-inspired tribal tat on her right wrist during a tour stop in New Zealand, will appear in stunning ads for Gucci's 4th annual UNICEF campaign.