It’s January 1990, and Lenny Kravitz, having placed himself on the map with his debut album, , is at the American Music Awards. Sat a few rows ahead of him is Slash, who he recognizes, but not just as the guitarist who wrote . “Guns N’ Roses is sitting in front of me and I see this guy and I'm like, I know this guy,” Kravitz recently told .

“And I'm looking at him like, wait a minute...

We went to high school together! And then we both realized, so we exchanged numbers.” The Beverly Hills High School alumni, classmates with singer-songwriter Maria McKee and Nicolas Cage, kept in touch and soon found themselves in the studio together. Recently, in a new interview with charting key moments across his career and his new album, Kravitz explained how their electrified reunion went down.

“He was just finishing a tour in England and said he wanted to do something. He jumped on the Concord, which got into New York City at 8.30 in the morning or something, and came to my place.

“He had me search for a gallon of vodka and a bag of ice, which by the time he got to me, it was 9.30am. I ended up banging on [my] neighbor's doors, got the vodka, got the ice.

“We took the train to Hoboken [New Jersey], where the studio was, with the vodka, a couple guitars and the bag of ice that was slowly melting, we got to the studio and we just did it.” The plan was for Slash to play a on , which would become the opening track on his second album, . Speaking to in 2019, Kravitz reveal.