The powerful 6-foot-1, 220-pound Smith was one of five junior-college prospects signed by U of L coach Bobby Petrino on Wednesday afternoon.
Smith became a hot commodity late for a bunch of colleges.
After chatting with the U of L staff, Smith and his family drove to Louisville on Friday and then on Monday made the call to Petrino that he was going to sign with U of L.
Smith had late offers from U of L, Vanderbilt, Southern Mississippi, Colorado and Notre Dame among others and also made an unofficial visit to Alabama.
Smith had a 3.0 grade-point average and is academically ready to go. He'll enroll next month and participate in spring practice.
In high school, Smith attended Hammond, La., Magnet School before heading to Fresno City for one season. As a junior, Smith had one of the best games of the season nationally with 31 carries for 447 yards and seven touchdowns against Pearl River High.
As a senior, Smith was named a first-team all-district defensive end, linebacker, running back and kick returner. He carried 59 times for 418 yards and six TDs last season on offense. But his only offer was from Southeastern Louisiana and he went to JUCO.
This past season Smith finished with 205 carries for 1,735 yards and 17 touchdowns in 11 games for Fresno City. He didn't start in the backfield until game five of the season.
In a November 14 game against the College of the Sequoyias, Smith set a school record with 375 yards and five TDs. The record had previously been held by All-American and later NFL running back Maurice Morris.