Spears was born in McComb, Mississippi to Jamie and Lynne Spears. She attended Parklane Academy, where she was a cheerleader and a member of the basketball team. She finished her education via online correspondence and received her GED in February 2008 from Kentwood High School in Kentwood, Louisiana. 

In February 2002, Spears made her acting debut in the Paramount Pictures drama film Crossroads which starred her sister, Britney, who portrayed the central character Lucy Wagner. Spears made a cameo, playing the younger version of Britney's character.

Following Crossroads Nickelodeon cast Spears as a regular performer in the eighth season of the sketch comedy series All That. The season followed a two-year hiatus of the series. Spears portrayed various roles through the two seasons she appeared in as well as herself. Spear's performance received positive reviews from critics with many complimenting her comedic timing and being a highlight of the show. Spears did not return for the series ninth season to pursue other roles on the network.

In August 2004, Spears signed a development deal with Nickelodeon in which she would star as the protagonist in her own scripted television series that would air on the network. The series went on to be titled Zoey 101. Spears portrayed the role of Zoey Brooks and centered on Zoey and her friends who attend a fictional boarding school Pacific Coast Academy. Spears recorded the theme song for the series titled "Follow Me". The song was written by her sister Britney. The series premiered on January 9, 2005 and went on to be the networks highest rated series premiere for the network in over eight years. The series was completely filmed at Pepperdine University in Malibu, California. Spears won a Young Artist Award and a Nickelodeon Kids' Choice Awards for her performance in the series. Nickelodeon announced the fourth season would be the series last season. The series finale, "Chasing Zoey", aired on May 2, 2008.

In December 2007, Variety announced Spears had signed on to guest appear in the ABC Comedy Sitcom series Miss Guided. Spears played the role of the promiscuous high school student Mandy Fener in the episode "Hot Sub" which aired on March 20, 2008. That same year Spears voiced the role of Goldilocks in the Straight-to-DVD animation film Unstable Fables: Goldilocks & 3 Bears Show. The film is the third and final installment of the Unstable Fables trilogy.

In April 2010, Spears moved from Liberty, Mississippi to Nashville, Tennessee to pursue her long desired music career. Following the move Spears begun work on a country music album with a number of local music producers. On November 7, 2011, Spears held a small concert at the Rutledge in Nashville in which she performed a set of original songs. The concert received much publicized media attention with critics praising Spears's performance. A country album was expected in 2012, but no word on the album has been announced.

Source: Wikipedia