Chicago - 25 or 6 to 4 - 7/21/1970 - Tanglewood (Official)

Chicago - 25 or 6 to 4 Recorded Live: 7/21/1970 - Tanglewood - Lenox, MA More Chicago at Music Vault: Subscribe to Music Vault on YouTube: Personnel: 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