Many disagreements can be solved with one heartfelt apology, but in the world of rock and roll supremacy, that rule does not apply.

Crosby, Stills,Nash and Young: David Crosby and Graham Nash

The latest comes from the CSNY camp as Graham Nash has throw in the towel vowing never to perform again with member David Crosby.

Nash's quote said “In my world there will never, ever be a Crosby, Stills, Nash & Young record and there will never be another Crosby, Stills & Nash record or show.” Nash said “I was letting Crosby be who he is. I let people play their hand in front of me, and I let him do it and then I make a decision.”

CSNY have a history of duking it out while on tour.

Here are a few more of the more famous rock feuds involving the gods of music.

Pink Floyd: . Roger Waters and David Gilmour

Basically is started when Roger Waters left the band in the 80's for a solo career and stormed off like an 8 year old saying it's my name, my pig and you can't use them. They did perform together again in 2005.

The Beatles  Lennon and McCartney.

The riff started after the death of their manager Brian Epstein and continue til Lennon's death in 1980, I'm sure it was mostly ego, because both had plenty of money and fame.

Guns N’ Roses, Axl versus the rest of the band.

Axl Rose has been penned as one of the most difficult rock musician to ever work with, he has gone through countless numbers of band mates.
In 2009 he was quoted as saying “Personally I consider Slash a cancer and better removed, avoided Rose went on to say "and the less anyone heard of him (Slash) or his supporters, the better,”
There are rumors of an original GNR reunion and tour as early as this year.

 Simon and Garfunkel

Paul Simon and Art Garfunkel's feud started way back in 1970, when they couldn't agree on the 12th song of their album 'Bridge Over Troubled Water' so they dropped the cut and dropped each other a team. Paukl Simon ego was evident when they were inducted into the Rock and Roll hall of Fame, whe Paul said quote “Arthur and I agree about almost nothing, but it’s true, I have enriched his life quite a bit.”

The irony their biggest hit 'Bridge Over Troubled Water' was penned and song by  Art Garfunkel

There are many others including Kiss, Deep Purple, The Kinks, even the Rolling Stones.
Waah Get over it!