Parties! The style, stars and scoop from Hollywood's hottest events

After presiding over the annual Snowflake Lighting Ceremony at New York City's Grand Army Plaza, Rihanna (in Gucci) headed uptown to attend the launch of Gucci's Tattoo Heart collection—to benefit UNICEF—at The Plaza Hotel. "I love fashion and designing," said the Caribbean queen, who helped create the line of special-edition handbags for the label. "It was a lot of fun."