Footage of Axl Rose performing the first date on a new Guns N' Roses world tour has fans worried that the legendary rock singer is losing his voice.
The Appetite For Destruction hitmakers performed at the Rock In Rio festival in Brazil alongside Coldplay, Metallica, Shakira and System of a Down.
But video footage of Guns N' Roses' performance showed Rose, 49, was having trouble with his voice, particularly during renditions of early hit Mr Brownstone and ballad November Rain.
"All you? can do is feel bad for the band," said one commentator on YouTube. "Axl Rose is a disaster," said another.
Critics suggested Rose's recent weight gain had contributed to his vocal issues, and a spokesman told Yahoo.com that "his time off from touring" might be to blame.