Earlier today, AC/DC announced their first album in six years, Rock or Bust. Sadly, they also announced that it will be their first without founding AC/DC rhythm guitarist and song-writer Malcolm Young, who will not be returning to the band. Back in April it was announced Young was “taking a break from the band due to ill health,” but now it’s permanent.

In a statement from Columbia Records:

“‘Rock or Bust’ is the first AC/DC album in the band’s 41 year history without founding member Malcolm Young on the recordings.  Earlier this year AC/DC released a statement explaining that due to illness, Malcolm would be taking a break from the band.  Unfortunately, due to the nature of Malcolm’s condition, he will not be returning to the band.”

Malcolm Young’s replacement will be Stevie Young, the nephew of guitarists Angus and Malcolm young. Stevie plays guitar on the new album, which comes out December 2nd, and will be playing with the band on a world tour in support of the new album in 2015.

A new song, ‘Play Ball,’ can be heard starting Saturday (27), during the start of the 2014 MLB Postseason.