Lenny rocking out with Slash is very cool. Smooth Radio: Always On The Run' was a collaboration with guitar-slinging rock god Slash from Guns N' Roses, who were in fact old school friends - the pair attended Beverly Hills High School, though barely knew each other before their fame. Recalling how the track came together, Kravitz told Rolling Stone magazine how it was a spur-of-the-moment, vodka-fuelled session that brought it together." He had me get a gallon of vodka and a bag of ice, and we went in the studio and bang, there it was.