This video was Recorded Live: on July 21, 1970 at the live performance of 25 or 6 to 4 by Chicago at Tanglewood in Lenox, Massachusetts. Members of the group: Robert Lamm - keyboards, lead vocals Terry Kath - guitar, lead vocals Peter Cetera - bass, lead vocals James Pankow - trombone, percussion Lee Loughnane - trumpet, percussio, background vocals Walter Parazaider - woodwinds, percussion, background vocals Daniel Seraphine - drums You are invited to join the channel so that Mr. P can notify you when new videos are uploaded, https://www.youtube.com/@Mr.PsMusicFans