Hilary Duff, Fergie, Joel Madden and Nicole Ritchie, Rosario Dawson, Janet Jackson and Eva Mendes were just some of the high profile guests out to celebrate the Cartier Love Day Launch.
Cartier is celebrating Love Day all over the world with films, art, music and of course jewelry.
A portion of the proceeds from the sale of a special love charity bracelet will raise funds for Action Against Hunger.
The official Love Day ambassadors are Janet Jackson, Ashanti, Eve, Fergie, Good Charlotte, Common, Hilary Duff and Emmy Rossum.
Cartier Love Day falls on June 19, and will be celebrated in New York with a performance by Rihanna.
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