She graduated cum laude with a degree in business administration from Rhodes College in 1999, where she served as president of the Chi Omega sorority. As part of the Bryce Harlow Institute of Business and Government Affairs, she also studied at Georgetown University in Washington, District of Columbia.
Alderson is married to Jay DeMarcus, the bassist in the band Rascal Flatts. Alderson"s sister Amy held the Mission District of Columbia United States of America 1999 title, at the same time that Alderson was Mission Tennessee. Alderson"s sister is married to country artist James Otto.
Alderson was Mission Tennessee Teen United States of America 1994, Mission Tennessee 1999 and Mission Tennessee United States of America 2002.
On May 15, 2004, Alderson married Jay DeMarcus, bassist/pianist in the band Rascal Flatts, whom she met when she acted in the video for the band"s song "These Days". The couple"s first child, a daughter named Madeline Leigh DeMarcus, was born on December 17, 2010.
Their son, Dylan Jay DeMarcus, was born on July 20, 2012. Alderson currently works on the CMT show Hot 20 Countdown and is the regular host of the Mission Tennessee pageant, which is held in her hometown, Jackson.
She served as "style judge" for CMT"s Karaoke Dokey and hosted Extreme Makeover: Quickbooks Edition.
Office camera, Alderson is on the boards of directors of Vanderbilt Children"s Hospital, the Women"s Fund of the Community Foundation of Middle Tennessee, the Make-A-Wish Foundation of Middle Tennessee and the Mission Tennessee Scholarship Pageant. She also volunteers for Chi Omega, the Nashville Symphony League, the Nashville Humane Association, the Nashville Ballet, Second Harvest Food Bank, the Nashville Alliance and the Oasis Center.