Arcade Fire played the 2013 Bridge School Benefit last night, and like he did at the event two years ago the charity’s founder Neil Young joined the band onstage. Arcade Fire played three songs from their new album Reflektor (out Tuesday) — “Reflektor,” “Awful Sound (Oh Eurydice),” and “Normal Person” — before introducing a brand new song inspired by Young. Here’s Win:

“I had a dream … We’re playing the song at soundcheck and I remembered, I woke up and remembered everything. I was half asleep and I started playing it and wrote down the lyrics and listened back to my tape recorder and it was basically a Neil Young. So this song is called ‘I Dreamed A Neil Young Song’ and Neil’s gonna come sing it with us. So this song is by Neil Young in my head.”

Watch it as part of the full night’s archived webcast below by scrolling to 06:07:00.

Other highlights to check out include Young joining My Morning Jacket for “Harvest Moon” at 5:10:00 and CSNY’s reunion at 7:45:10.

Tonight’s webcast will include performances again from CSNY, QOTSA, MMJ, Elvis Costello, Heart, Jenny Lewis, and, in his first concert in five years, Tom Waits.