"I wanted to get this out of the way," Hatcher said. "I found a school I am going to be comfortable with for the next four years."
The four-star recruit is the 17th player to commit to USC's 2013 recruiting class.
"Once my family and I sat down and looked at it and I talked to coaches some more, it was just a perfect fit for me."
Hatcher picked the Trojans over Louisville and Tennessee.
"For a long time, my whole life I always wanted to get away and go somewhere else for college," Hatcher said.
The 6'3" 230 pound recruit is ranked as the No. 3 defensive end in the country and No. 38 overall prospect in the Scout 300.
"Hatcher is a good looking pass rusher who looked good at The Opening," said national recruiting analyst Greg Biggins. "He has a real nice upside to him."
Hatcher's commitment gives USC a dominant defensive line class that features a pair of five-star defensive tackles and four-star defensive ends.
"With the No. 1 recruiting class coming in, it's only going to get better out there," Hatcher said. "We're just stacking up."
- Jody Demling contributed to this report.