Tour director Nicholas Cocuzzoli - who is currently under trial for drug possession after a bag of cannabis was found during a police raid at a Sydney house he shared with Childs - claimed in court that Childs would often go on stage under the influence of 'ice', or methamphetamine.
The Herald Sun reports that Cocuzzoli told the Sutherland Local Court that Australian X Factor winner Childs would get "wrecked" before live shows, but said that his staff had stopped trying to help him deal with his addiction.
> Ronan Keating never gave a damn about me, says 'X Factor' Australia's Altiyan
> Aussie 'X Factor' winner Altiyan Childs dumped by manager
He added: "It was a real problem because of the mood swings... he would be wrecked before his shows. We tried to address it two or three times but he would go into a fit, kicking walls and screaming. It got to the point where it wasn't worth it."
In court last Wednesday (February 29), Childs admitted to using cannabis, saying: "I've smoked it before. I had a joint once or twice."
Childs moved out of the Ramsgate property shortly before police raided it on April 1 last year and seized drugs and weapons. His former manager Steve Yankuloff, also known as Steven Gold, last month pleaded guilty to possession of guns.
Cocuzzoli's court case is scheduled to continue on April 2.
> Altiyan Childs: 'I'm sick of being a nice guy'
> 'X Factor' Australia's Altiyan Childs makes music comeback after scandals
Watch Altiyan Childs perform 'Beautiful Day' on The X Factor Australia below: