For the 40th anniversary of GHOSTBUSTERS: Ray Parker/Jimmy Fallon/The Roots

To celebrate the 40th anniversary of the original "Ghostbusters" (and another sequel about to be released), Jimmy Fallon brought Ray Parker Jr back to do a new version of the hit song from 1984--this time joined by Bill Murray, Ernie Hudson and The Roots. But this time the only instruments they played were those that could be found in a typical classroom.

ENJOY!