Peterson is the second former Penn State cornerback commit to flip to North Carolina.
All out of the outside head coaching noise hasn't deterred Smith from his goal: bowl eligibility.
Allen became Penn State's all-time leading rusher with 160 yards against Nebraska.
Andrew Rappleyea scored his first career touchdown against the Cornhuskers.
Littlejohn had 14 sacks in seven games as a junior.
With their college career ends in sight, Allen and Singleton are going out while etching their names in the Penn State history books.