Angus Young could be the last man standing in AC/DC. Bass player Cliff Williams says he plans on retiring from the group and attributes his decision to the loss of Malcolm Young, Phil Rudd and Brian Johnson. Speaking with Gulf Shore Life, Williams said the band has been '...what I've known for the past 40 years, but after this tour I'm backing off of touring and recording. Losing Malcolm, the thing with Phil and now with Brian. it's a changed animal. I feel in my gut it's the right thing.' The group lost Malcolm Young to dementia and cancer, Rudd to a series of misadventures that led to criminal charges and Brian Johnson to a severe hearing impairment.