Green Bay Packers Stars — WE SANG FOR REAL … In ‘Pitch Perfect 2′

WE SANG FOR REAL … In ‘Pitch Perfect 2′

EXCLUSIVE

Clay Matthews aint no Milli Vanilli … TMZ Sports has learned the Green Bay Packers star laid down REAL LEGIT VOCALS for his cameo in “Pitch Perfect 2” … and apparently, it came out pretty excellent. 

In fact, all of the football players who have a cameo in the movie hit up a recording studio…