Crosby, Stills, Nash and Young released their first live album in April of 1971 and named it '4 Way Street.'
The album, featuring 'Cowgirl In The Sand', 'Suite:Judy Blue Eyes' and 'Teach Your Children' among others, peaked at number one on the Billboard Top Album Chart and shipped as a gold record.
The songs were taken from CSN&Y's 1970 tour from venues in New York, Chicago and Los Angeles.

Due to tensions among the members, the group dissolved after that recording, and new material didn't come about until 1977 as Crosby, Stills & Nash.
Here's a cool version of 'Suite:Judy Blue Eyes' from Crosby, Stills and Nash during their 2012 concert tour.