Ludacris -- real name, Christopher Bridges -- will join an all-star cast of judges to choose a winner during CNN's fourth annual 'CNN Heroes: An All-Star Tribute' ceremony, which will take place on Thanksgiving.

The global broadcast will air live from the Shrine Auditorium in Los Angeles on November 25 and it will be hosted by famed CNN anchor Anderson Cooper. Ludacris, and a slew of celebrity judges on CNN's "blue-ribbon" panel -- including Muhammad Ali, Ricky Martin, Holly Robinson Pete and Hill Harper -- will review the top 10 Heroes of the year, which have been narrowed down from a pool of over 100, 000 nominees.

Jim Walton, president of CNN Worldwide, emphasized that the annual program is intended to highlight people who have worked hard to give back to their communities and to society. "CNN Heroes has illustrated the best of humanity throughout the telling of stories of selfless acts of kindness, courage and perseverance," Walton said, in a statement. "We are honored to bring these Heroes the recognition they so deserve. It is a program the entire CNN family is proud of and excited to share with our viewers on Thanksgiving night.

The Top 10 Heroes will take home $25,000 prizes, while the Hero of the Year will be awarded with $100,000. Viewers can log on to to cast their votes.

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