The gig was a private party hosted by New England Patriots owner Robert Kraft at Gillette Stadium.
The longtime guitarist for the southern hillbilly psycho-boogie band with over 50 years of history was 72.
Bushy was only member of IRON BUTTERFLY to appear on all six of the band's albums.
The clip was uploaded to the band's social media accounts on Friday.
The band will resume the "No Filter" trek in St. Louis on September 26.
A statement from the band and Watts’ spokesperson announced the news.
Charleen McCrory offered her first public comments since the bassist's death.
On Wednesday, it was revealed that Hill died in his sleep at home in Houston of indeterminate causes.
Byram and a passenger were riding on Dam Road about a mile north of Council Grove.
Ozzy, Paul Stanley, Slash, and Billy Corgan are among hundreds of rockers who have paid tribute to the Texas icon.