As the world grieves rock royalty Ozzy Osbourne, all sorts of amazing moments from his life and career are resurfacing.
One of these is a look at what Ozzy himself called "one of the happiest days of his life" back in 2018, when he watched a group of young musicians perform a cover of his hit 'Crazy Train'.
In an episode of 'Ozzy and Jack's World Detour', a reality show the Black Sabbath frontman starred in with his son, the pair visited Louisville, Kentucky, along with Ozzy's daughter Kelly.
There, they met the 'Louisville Leopard Percussionists', who treated The Osbournes to an incredible cover of 'Crazy Train', played on bongos, xylophones, drum sets, piano and a few maracas.
They even used train whistles at the start of the song before screaming the iconic "All aboard!" opening line.
Ozzy was obviously stoked with the performance, grinning his iconic grin, clapping his hands and turning to daughter Kelly to call it "brilliant".
"Thank you very much," he told the kids when they finished. "That was awesome. Absolutely awesome."
Reflecting on the moment later, he gave the group "10 out of 10", telling Kelly: "I was f*cking blown away with how good they were.
"For them to remember their part and play without feeling nervous…"
As well as signing a drum head for the band, Ozzy also answered some questions from the students, including one about what inspired him to start music.

"When I first heard of a band called The Beatles, that changed my whole life," he told them.
"I remember exactly what I was doing, I was walking down the road with a transistor radio and the song 'She Loves You' came on and I just thought, 'What is this?!'
As for advice for the up-and-coming musicians, he said simply: "You have to have a desire to really want to do it. Practice makes perfect."
Before the Prince of Darkness took his leave, one young performer came up to him to say: "I just want to tell you, because I may never see you again, that you are my favourite musician in the world."
Without hesitation, Ozzy replies, "Give me a hug", embracing the young fella before telling him, "If you want to be a musician, you gotta practice. Good luck man, God bless you. Thank you very much".

Ozzy told the cameras it had been "one of the happiest days of his life", saying the kids had "given him hope" and made "what he does for a living all worth it".
Three years before Ozzy even got to watch the Louisville Leopards perform his song in person, he'd already donated $10,000 to the program after seeing a viral video of their 'Crazy Train' performance in 2015.
How epic for those kids to have been involved in such an important moment for Ozzy. And can we have a moment for the teacher?