Gucci celebrated the launch of its Tattoo Heart Collection on Wednesday, a line of products that benefits UNICEF. Rihanna, who is the new face of the campaign, was joined Gucci creative director Frida Giannini at a snowflake lighting ceremony at the Grand Army Plaza, which was followed by an event at Gucci's flagship and dinner at the Plaza's Oak Room. Guests included Madonna, Penn Badgley, Blake Lively, Adrian Grenier, Monet Mazur, Timbaland, Mary J. Blige, Erin Wasson, Becki Newton and Chris Diamantopoulos, Kelly Rutherford, Patricia Field, Charlotte Ronson, Shoshanna Lonstein Gruss, Jessica Joffe, Julia Restoin Roitfeld, Mamie Gummer, Eleanor Ylvisaker, Bethenny Frankel, Anja Rubik, Hal Rubenstein, Magnus Berger, Joe Zee, Kelly Killoren Bensimon, Lizzie and Jonathan Tisch, and Maggie Betts. [Style.com, NYO, PMc, Wireimage]

Everyone's favorite set of child-star-turned-media-tycoon twins, Mary-Kate and Ashley Olsen, turn 22 today. Congrats, girls. We expect there'll be lots of shots involved in your celebration tonight, although we're guessing you decided to forgo the birthday cake. Also celebrating around town today: U.N. head honcho Ban Ki-Moon turns 64. Portly congressman Jerry Nadler is 61. Celebrating tomorrow: Donald Trump will turn 63, although with that rug on his head, he doesn't look a day over 62. CNN's Campbell Brown turns the big 4-0. Book editor Alice Mayhew will be 72. Hedge fund tycoon Stanley Druckenmiller will be 56. Restauranteur Phil Suarez turns 68. And veteran sportscaster Len Berman will be 62.

The intensely private Mayhew is editorial director at Simon & Schuster. She's known for acquiring and editing inside-the-Beltway page-turners, notably Bob Woodward and Carl Bernstein's seminal Watergate investigation, All the President's Men.

Former Time deputy managing editor Priscilla Painton has been named editor-in-chief of Simon & Schuster's adult trade imprint, which is far more respectable than it sounds. Painton, who left Time in December, will take over most of the responsibilities of flinty (and legendary) editorial director, Alice Mayhew, who's staying on at the publishing house in a somewhat diminished capacity. Mayhew shepherded, among others, books by Craig Unger, Bob Woodward, Doris Kearns Goodwin. Painton, daughter of one of the founders of Time Europe, spent 20 years at the news weekly, earning the respect of many. She was known for making wry fun of former managing editor Jim Kelly to his face (when warranted) during weekly staff editorial meetings, and remains the highest-ranking female editor in the magazine's history. [NYT]