Jesse McCartney is an American actor, voice actor, singer, and songwriter. McCartney achieved fame in the late 1990s on the daytime drama All My Children as JR Chandler. He later joined boy band Dream Street, and eventually branched out into a solo musical career. Additionally, McCartney has appeared on shows such as Law amp Order SVU and Summerland and Greek. McCartney also is known for lending his voice as Theodore in Alvin and the Chipmunks and its sequels, as well as voicing RobinNightwing in Young Justice and Roxas and Ventus in the video games series Kingdom Hearts developed by Square Enix.
McCartney was born on April 9, 1987, in Ardsley, Westchester, New York, the son of Ginger and Scott McCartney. He began performing in local community musicals at the age of seven, before joining the national tour of The King and I at age ten along with Phil of the Future star Ricky Ullman. There he played the character of Louis. In 1998, he sang with the group Sugar Beats and can be heard on their 1998, 1999, and 2000 CD releases.
Source: Wikipedia