Having been a part of two of the biggest and most important bands of the last couple of decades, Dave Grohl's Nirvana involvement has never ceased to be news, even 20 years after the death of Kurt Cobain - and now, he thinks back on how Foo Fighters began!

It's not a secret to anyone that Dave Grohl's Nirvana gig was what made him a household name across the world, as he was part of perhaps the most iconic grunge band of the early 90s - a band that gave a singing voice to an entire generation, becoming one of the musical landmarks of the 1990s.

Twenty years later, Dave Grohl's Nirvana stories are mythic, after the band's lead singer, Kurt Cobain, died tragically in 1994, committing suicide by shooting himself with a shotgun at his Seattle home in the spring of that year.

Now, the man behind Foo Fighters shares his time when he was just thinking of starting the band, according to The Huffington Post. In the HBO series that serves as a tie-in to the band's new album, "Sonic Highways," it was revealed how Dave Grohl's Nirvana times saw the famous drummer, guitarist and singer, showing the demo of what would become Foo Fighters to Cobain, who was pleasantly surprised.

According to Billboard, the episode revealed that, when Grohl played Cobain the demo of the songs he'd been working on, the Nirvana front man was so pleased that he got up from taking a bath to kiss Grohl in the face.

"Kurt heard that, and kissed me on the face, as he was in a bath," Grohl said on the HBO series, according to Consequence of Sound. "He was so excited. He was like, 'I heard you recorded some stuff with Barrett.' I was like, 'Yeah.' He was like, 'Let me hear it.' I was too afraid to be in the same room as he listened to it."

On the same show, a demo of a Dave Grohl Nirvana-era was also revealed, a song called "Hooker on the Street" - right up Nirvana's alley. You can listen to it below!