Leon G. Thomas III (born August 1, 1993 in Brooklyn) is an American actor and singer, known for his performances in the Broadway productions The Lion King, Caroline, or Change, The Color Purple and for his charecter Andre Harris on the Nickelodeon series Victorious. He appeared in the film August Rush as Arthur performing the song "La Bamba" and was the singing voice for Tyrone in The Backyardigans. Thomas has also guest starred on Jack's Big Music Show and Just Jordan.