John Denver was one of the three musicians who testified against censorship at the 1984 PMRC congressional hearings.

Along with Dee Snider of Twisted Sister (in all his pointy-toothed glory) and Frank Zappa, Denver testified before Congress and spoke out against censorship in any form. It was interesting for everyone to see good ol' John take the stand, as the other musicians testifying couldn't hold a candle to Denver's squeaky-clean image, which no doubt threw the right wing panel for a loop.

Denver's specific reason for testifying was that his "Rocky Mountain High" was refused airplay from some radio stations in the early seventies due to 'possible drug references'.