James Pankow - trombone, percussion, keyboards, vocalsbr Peter Cetera - guitar, vocalsbr Robert Lamm - keyboards, guitar, vocalsbr Lee Loughnane - trumpet, guitar, keyboards, percussion, vocalsbr Walter Parazaider - woodwinds, backing vocalsbr Danny Seraphine - drums, percussion, backing vocalsbr Terry Kath - buss, vocalsbr Laudir de Oliveira - percussion