"Education was really important to me in my decision," he said. "I love the program they have there for Sports Management.
"I was riding back on Christmas with my family from Jacksonville, decided to go on and do it (commit)."
Johnson said his family is excited about his future at WKU.
"They like the program I'm going up there for (Sports Management)," he said. "I'm already working on getting an internship maybe with the Tennessee Titans (in nearby Nashville)."
He was recruited to WKU by the previous coaching staff, but new Hilltopper assistant coach Kevin Peoples' reached out to him shortly after his hiring.
"I called Coach Peoples' up (on Dec. 25) and told him I was ready to commit," Johnson said. "He said it was the best Christmas present he got all day."
Johnson will be the only tight end commit WKU will take in the Class of 2013.