Last night’s Operation Smile’s 2009 Smile Event brought out charity supporting celebs doing their part to help children one smile at a time.

Guests included Today Show’s Natalie Morales, Ciara, Adrienne Bailon, Gretta Monahan, Sabine Singh, O.A.R.’s Benj Gershman, Sessilee Lopez, Ryan Leslie, Debbie Weinberg, Eli Mizrahi, Lucas Somoz, DJ Stacey Stylez, Angela Severiano, John Salley and Dhani Jones with performances by Vanessa Carlton and Bianca Ryan.

Adrienne Bailon hit the red carpet in a magenta House of Deron dress adorned with Juditha ripka jewels.

Ciara looked fierce rocking a pair of Pucci shoes and Halston jacket.

Olivia Palermo star of MTV’s The City.

The below event chairs, committee members, and supporters were also in attendance:

Olivia Palermo, Lydia Hearst, Vanessa Trump & Donald Trump Jr., Lacey Tisch-Sidney & Lowell Sidney, Andrew Tisch and Anne Tisch, Gillian Hearst Simonds & Christian Simonds, Hayley Bloomingdale.

Founded in 1982, Operation Smile, headquartered in Norfolk, Virginia, is a worldwide children’s medical charity whose network of global volunteers are dedicated to helping improve the health and lives of children and young adults. Since its founding, Operation Smile volunteers have treated more than 130,000 children born with cleft lips, cleft palates and other facial deformities and the organization has a presence in 51 countries.

In addition to contributing free medical treatment, Operation Smile trains local medical professionals in its partner countries and leaves behind crucial equipment to lay the groundwork for long-term self-sufficiency. Their mission is to mobilize a world of generous hearts to heal children’s smiles and transform lives across the globe.