Back in December, Axl Rose made a surprise cameo appearance on Boomerang's New Looney Tunes, where he saved the Earth from an asteroid by singing a song called "Rock the Rock.' The writers of that episode have finally revealed how it all came together.
They were interviewed for the Guns N' Roses-themed Appetite for Distortion podcast, where host Brando got the inside information. As Fleming revealed at about the 36-minute mark, he got the idea after catching a show on Guns N' Roses' Not in This Lifetime tour and noticing that the band walked onstage to the classic Looney Tunes theme. After attending a second show on the same tour, while fantasy booking ideas for who they wanted as guest stars, Rose popped into their heads.