Here's his reasoning for leaving:
"After a long time of consideration and many, many hours of thinking I now, with sadness, announce my departure from the band.
"I have been a part of the band for seven years and during that time I have experienced so much and I have seen more than I ever thought I would. But now it is time for me to say goodbye.
"My reason for doing this is that I feel a strong urge to do something different in music. This is the one and only reason and it's 100% my own decision.
"I want to thank the boys for all the good times we have had together thoughout the years. I wish them the best of all success, something they truly deserve and without doubt will achieve."
"After a long time of consideration and many, many hours of thinking I now, with sadness, announce my departure from the band.
"I have been a part of the band for seven years and during that time I have experienced so much and I have seen more than I ever thought I would. But now it is time for me to say goodbye.
"My reason for doing this is that I feel a strong urge to do something different in music. This is the one and only reason and it's 100% my own decision.
"I want to thank the boys for all the good times we have had together thoughout the years. I wish them the best of all success, something they truly deserve and without doubt will achieve."