According to a Setlist.fm report, the band performed a handful of songs during the Sydney show before Neil left the stage. Bassist Nikki Sixx reportedly told the crowd that the singer was in pain and had been taken to a nearby hospital.
Guitarist Mick Mars later confirmed that Neil was suffering from kidney stones and apologized for the shortened set on Twitter. “Sydney, my apologies for a short set this evening. Vince had an attack of kidney stones. He went straight from stage to the hospital,” Mars wrote.
Mötley Crüe, currently co-headlining their tour with KISS, is scheduled to continue its trek through Australia on Tuesday night in Brisbane. “If there is a way to safely perform, [Neil] always does,” band manager Allen Kovac told CNN. “In nearly 20 years of managing Motley Crue, I can’t recall a show the band has canceled.”
additional source: billboard.com