Kyle Gass shows off his weight loss transformation.Photo:Kyle Gass/Instagram

Kyle Gass/Instagram
Kyle Gassis working on his health!
The Tenacious D musician, 63, posted anInstagram reelon Thursday showing his impressive weight loss transformation.
The video was set to the group’s song “To Be the Best” and included two full-body images of Gass.
On the left, the guitarist looks straight at the camera as he poses shirtless with his hands against his body. In the other, Gass flexes his arms, showing off his slimmer physique.
The rocker added in the caption, “#progressnotperfection #nothingtastesasgoodasthinfeels #dzercise.”
His fans praised him in the comment section. “Health #1 in this life … perfection is a farce. Well done, my friend.❤,” one Instagram user wrote, while another added, “Way to go 👏🔥🙌.”
Kyle Gass.Ethan Miller/Getty

Ethan Miller/Getty
Black, 54, who voices the character of Po in the film,spoke with reporters about the cover earlier this month at theKung Fu Panda 4premiere.
“Yeah. So, people don’t know … I don’t even know if I’m allowed to say. I’m just going to give you the scoop, but the director, Mike [Mitchell], said, ‘Hey. We’d love to have a Tenacious D song,’ " said Black. “That’s Mike right there … ‘at the end credits. Will you do a song?’ "
He said Tenacious D was given the okay to cover Spears' hit 1998 song “because it’s kind of in the vein of Kung fu.”
(L-R) Kyle Gass, Jack Black.Michael Tran / AFP bia Getty

Michael Tran / AFP bia Getty
Black shared with PEOPLE in an April 2023 conversation that the project"he is most proud of in his own career” is one with Gass.
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
source: people.com