So, AC/DC was on tour when suddenly Brian Johnson, their lead singer, had to quit immediately or face total hearing loss.
Well, at Coachella, they announced that they'd recruited a replacement singer to help finish up the promised tour.
It's Axl Rose.
Axl will be joining the band for their European tour, and then returning to the US for the "Let's See if Slash and Axl kill each other" GNR reunion tour.