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

Green Bay Packers Stars WE SANG FOR REAL … In ‘Pitch Perfect 2’ 2/17/2015 5:10 PM PST BY TMZ STAFF EXCLUSIVE Clay Matthews ain’t 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 good.  In fact, all of the football players who have a cameo in the movie hit up a recording studio and flexed their god-given pipes for a scene in the upcoming movie … at…

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