If you missed the live webcast of Neil Young's 2013 Bridge School Benefit Concert in Mountain View, California, this past Saturday, you're in luck: You can still watch the entire show now on YouTube.  The all-acoustic event featured a headlining set by Crosby, Stills, Nash & Young marking the first time in several years that the quartet has hit the stage together as well as performances from Heart, Elvis Costello and more contemporary artists such as Jack Johnson, Queens of the Stone Age, My Morning Jacket, Arcade Fire and fun.

Young kicked off the show with a short solo set that included a rendition of Bob Dylan's "Blowin' in the Wind" and his own classic "Heart of Gold."  He also was joined by his wife, Pegi, co-founder of the Bridge School, for a duet on his 1978 gem "Comes a Time."

In addition, Neil popped up on stage to collaborate with a few of the other performers, including Johnson, My Morning Jacket and Arcade Fire.

Costello's performance, meanwhile, featured surprise guest Graham Nash.  The two stars teamed up for a duet rendition of "King Midas in Reverse" by Nash's old band The Hollies.

The CSNY performance featured the supergroup mixing classic hits with rarities and some newer tunes.  Among the well-known songs they played were Crosby, Stills & Nash's "Just a Song Before I Go" and "Suite: Judy Blue Eyes," and CSNY's "Déjà Vu" and "Teach Your Children."  They also delivered a rendition of the Young obscurity "Human Highway"; a new tune by Neil titled "Singer Without a Song"; and Stephen Stills' "Don't Want No Lies," a cut from his blues-rock project The Rides' 2013 debut album, Can't Get Enough.

Check out all the action at the Bridge School Benefit Concert's official YouTube channel.  If you'd like to donate to the Bridge School, you can do so at BridgeSchool.org.