As a child, Bleu studied dance for several years, focusing on jazz.
Bleu had small roles in films such as Soldier with Kurt Russell, Family Tree, Mystery Men with Ben Stiller, and Galaxy Quest with Tim Allen, Sigourney Weaver, and Alan Rickman before he gained a lead role the 2004 film, Catch That Kid. After the success of Catch That Kid, Bleu signed to star in Flight 29 Down, a drama series about a group of teens stranded on an island. He also has a small role as Spencer on Ned's Declassified School Survival Guide on Nickelodeon— his first appearance being in the episode titled Guide to: The School Play.

In 2006, he had a supporting role as "Chad" (the best friend of the male lead) in the very successful High School Musical, the Emmy award-winning Disney Channel Original Movie. Bleu toured with fellow HSM cast members from late November 2006 to late January 2007 in High School Musical: The Concert performing at about 40 different cities. He was nominated for the Young Artist Award in 2007 for his performance in High School Musical.

Has appeared in two of the three highest rated Disney Channel Original Movies ever: High School Musical (2006) (TV) and Jump In! (2007) (TV). Appeared in 3 of the 4 highest premiere night movies on Disney Channel.

Bleu's next film, Jump In! co-starring actress and Keke Palmer as well as Bleu's father David Reivers, premiered on January 12, 2007, and has since become one of the highest rated Disney Channel Original Movies of all time.

His debut album, Another Side, was released May 1, 2007. To promote his debut album, Bleu performed at the NextFest tour 2007 along with Aly & AJ, Drake Bell, and Bianca Ryan