AC/DC 'won't perform or record again': Reports | 3AW Brekafast
TL;DR: Rumor is that Malcolm is very ill (EDIT: possible blood clot in his brain), retiring from the band, and the rest of the band is joining him.
End of a legend if true and will be missed. There was a time in my young life that I was a huge AC/DC fan, now not so much, just burnt out on them really I guess...but I have seen them many times live and they always showed up ready to rock. One of the hardest working bands in music for a long time.