Angus Young In April 2014 Malcolm Young was forced to leave the band due to ill health, leaving Angus the last consistent member of the band. In May it was revealed that Stevie Young, Malcolm and Angus's nephew, would stand in for his uncle to record AC/DC's latest record. In September Malcolm officially retired and Stevie was made AC/DC's official full-time rhythm guitarist. AC/DC released "Rock or Bust" in the fall of 2014. In March 2016, after the departure of both Malcolm Young and drummer Phil Rudd, AC/DC was set back with yet another departure; long time lead singer Brian Johnson was
Malcolm Young band. Stevie Young continued to fill in for Malcolm on the band's 2015 Rock or Bust World Tour. On 26 September 2014, "The Sydney Morning Herald" reported that Young had been diagnosed with dementia and had been admitted to a nursing home where he could receive full-time care. A source close to Young was quoted in this article as saying that he had "complete loss of short-term memory". Young's family confirmed four days later that he had dementia, saying that Young "is suffering from dementia and the family thanks you for respecting their privacy". In subsequent interviews, Angus stated that