Harris, a 6-foot-4, 205-pound standout now at Iowa Western Community College in Council Bluffs, Iowa, will have three years to play his final two years of eligibility at U of L.
The 17th commitment in the '15 class for U of L, Harris is the third wide receiver. The Cardinals loss a bulk of their top wide receivers after this season to graduation.
A native of Upper Marlboro, Md., Harris was one of the top receivers in the country in the Class of 2013. He picked Tennessee over USC and Oregon in the end.
As a senior in 2012, Harris hauled in 32 receptions for 732 yards and 11 touchdowns to help lead Frederick Douglass to a second-consecutive Class 2A state runner-up finish. He kicked a 26-yard game-winning field goal during one of his team's playoff wins that season.
In 2013, Harris played in five games at Tennessee and caught one pass for 15 yards. But in December he announced he was leaving the Volunteers program and ended up at Iowa Western where he will play one season.
U of L was one of the first schools to contact - and offer - Harris a scholarship after he arrived at Iowa Western.
He also had an offer from East Carolina and interest from Central Florida, Boise State, TCU, South Carolina, Kansas and Indiana.
Harris visited U of L in June and said the offense was "something I'd like to play in." And this morning he committed.
"I love that they throw the ball a lot," Harris said. "It's a great offense to be a receiver in. They're losing five receivers so it's a real good opportunity waiting for me there if I decide on them. Playing time would be available right away."