Crosby Stills Nash & Young

Video tells story of track that didn’t make cut for ‘Deja Vu’ but appears on upcoming deluxe version.

Four CDs will feature numerous outtakes, unheard alternate versions and an appearance from Joni Mitchell.

Trio brought Neil Young on board shortly after releasing their debut album.

It wasn't long before they were back to fighting again.

On May 4, 1970, National Guardsmen squared off against anti-war demonstrators on the campus of Ohio’s Kent State University.