Celebrities are becoming more and more involved in social awareness, and not just by donating funds.

Nina Dobrev, the leading lady in the hit vampire drama "Vampire Diaries," and Joe Jonas, a third of the Jonas Brothers, are taking a vow of silence to show their support for Free the Children.

Actress Nina Dobrev poses as she arrives at the 63rd Primetime Emmy Awards in Los Angeles September 18, 2011. REUTERS/Danny Moloshok

Dobrev is a Bulgarian-born, Canadian-raised actress who currently plays the dual role of Katherine Pierce and Elena Gilbert in "Vampire Diaries," with both characters caught in an ongoing love affair with two brothers, Damon and Stefan Salvatore. She is also known for her role as Mia Jones in "Degrassi: The Next Generation."

Joe Jonas, on the other hand, is a Disney star more popularly known as part of the pop rock band Jonas Brothers. He has starred in the Disney TV show "JONAS" and in the Disney movie "Camp Rock."

The two young stars are joining longtime NBA star Shaquille O'Neal and the stars of the MTV show "The Buried Life" will remain silent for 24 hours on Nov. 30 to show their support of children who are exposed to low standards of living such as poverty, hunger and disease all over the world.

Singer and honoree Joe Jonas poses at the US Weekly Hot Hollywood Style issue party in Hollywood, California, April 26, 2011. REUTERS/Mario Anzuoni

Star Pulse reports that Dobrev have shown her full support with a short message via Twitter.

"Stand with me & Free The Children in silence to support those without a voice," she tweeted Sunday.

Free The Children was founded in 1995 by then 12-year-old Craig Kielburger as a school project. They specialize in sustainable development in different countries such as Kenya, Ecuador, Sierra Leone, and China, among other countries, as well as in empowering the youth in developed countries to become socially engaged.

Craig Kielburger, Canadian activist and Founder of Free The Children, speaks at the Greater Tacoma Community Foundation "Be the Spark" event in Tacoma, Washington, May 13, 2011. Archbishop Emeritus Desmond Tutu was the keynote speaker of the event. REUTERS/Marcus Donner

"...on November 30, 2011, young people will go silent for 24 hours in solidarity with children who are being silenced by poverty and exploitation. For Vow participants, being silent can mean refraining from speaking. It can also mean not using email, Facebook, Twitter or text messaging. It can even mean not using hand gestures, note writing or any communication at all. Participants like you can determine your level of silence based on what you're comfortable with," mention by the Vow of Silence Web site as to what you can do to show your support.