Joe Rogan is blasting Gal Gadot for what he sees as a serious case of tone-deafness ... Joe says she's a "f***ing idiot" for singing "imagine there's no heaven."
Joe just gave Gal an epic dressing down on his podcast, ripping her for getting tons of her celebrity friends to sing John Lennon's "Imagine" in the middle of the coronavirus pandemic.
The way Joe sees it ... "This is not the time when everyone's grannie is dying, you f***ing idiot, to sing, 'Imagine there's no heaven.' It's such a dumb move."
As you know ... Gal and her famous friends -- including Will Ferrell, Natalie Portman, Amy Adams, Mark Ruffalo, Zoe Kravitz, Kristen Wiig and Sarah Silverman -- sang parts of Lennon's famous tune and posted it on social media while in self-isolation.
Joe says they're all a bunch of "knuckleheads" ... he thinks it's really not what the country needs at this time, and says they all stink at singing anyways.
Comedian Tom Segura, Joe's podcast guest, thinks Gal and her buddies probably feel like they did something significant, but he says it's really a slap in the face to many.
Tom joked ... "I lost my job at the meatpacking plant, but Gal Gadot sang 'Imagine.'"