Jason Aldine Williams (born February 28, 1977), known professionally as Jason Aldean, is an American country music singer. Since 2005, he has been signed to BBR Music Group (formerly known as Broken Bow Records), a record label for which he has released eleven albums and 40 singles. His 2010 album, My Kinda Party, is certified quadruple-platinum by the Recording Industry Association of America (RIAA). His 2012 album Night Train is certified double-platinum, while his 2005 self-titled debut, 2007 album Relentless, 2009 album Wide Open, and 2014 album Old Boots, New Dirt are all certified platinum. Aldean has received five Grammy Award nominations throughout his career, twice for Best Country Album.

30 of Aldean's 41 singles have reached number one on either the Hot Country Songs or Country Airplay charts. In 2023, he released "Try That in a Small Town," which was the subject of widespread controversy following the release of its music video, whilst becoming Aldean's first number-one hit on the Billboard Hot 100.

Aldean has had many hits including "Amarillo Sky", "She's Country", "Big Green Tractor", "Crazy Town", "My Kinda Party", "Dirt Road Anthem", "Fly Over States", "When She Says Baby", "Burnin' It Down", "You Make It Easy", "If I Didn't Love You", "Trouble with a Heartbreak", "Try That in a Small Town", and "Whiskey Drink".

Jason Aldine Williams was born in Macon, Georgia, on February 28, 1977. His parents separated when he was three. He was raised by his mother in Macon, and during the summer he spent time with his father in Homestead, Florida. He attended Windsor Academy, a private Christian school in Bibb County, Georgia. Before his father went to his work, Aldean would map out guitar chords on notebook paper to show his son where to place his fingers to play the chords and Jason would sit and practice all day while his father was at work. When his father got home, he got out his own guitar and they played together. Soon he could play a song after hearing it only a few times. His early favorites included George Strait's "The Cowboy Rides Away", Hank Williams Jr.'s "The Blues Man", and Alabama's "My Home's in Alabama".

Both of his parents encouraged young Aldean as he progressed musically. From age 14, after watching the country-music awards on television, he wanted to perform on stage. With his mother's help, he performed at the local VFW hall in Macon. He sang John Anderson's song "Seminole Wind" and Tracy Lawrence's "Sticks and Stones". He then began performing at area talent contests and local fairs. At 15, he joined the "house band" at Georgia nightspot Nashville South.

In order to stand out, Aldean changed the spelling of his middle name, Aldine, to come up with the name Aldean.

After high school, with his father's help, Aldean and his band performed at clubs and festivals around the Southeast. With Justin Weaver (one of the band's members), Aldean began writing and recording original songs. In 1998, he performed songs from his first album at a showcase staged by Atlanta nightclub The Buckboard. He was approached by Michael Knox, then of the Warner-Chappell song-publishing company. After signing with Warner-Chappell, Aldean moved to Nashville on November 1, 1998, at the age of 21.

Aldean was offered a recording contract but was subsequently dropped. He signed with another label but again was dropped in 2000 after his label postponed his recording sessions repeatedly. Various showcases failed to bring him a contract. The last straw was an attempt at the Wildhorse Saloon where the promised label talent scouts never showed up. Frustrated and discouraged with his struggling career, Aldean gave himself six months before planning to leave Nashville and return home to Georgia. Then five weeks later, he was offered a deal from Broken Bow Records in Nashville. Shortly after the release of his self-titled debut album, Aldean picked up his new (and current) agent Kevin Neal. While recording Relentless, Aldean moved to Clarence Spalding and Spalding Entertainment for management.