Helen Reddy / Nitty Gritty Dirt Band / Phoebe Snow
Episode: 4x01 | Airdate: Sep 19, 1975
Episode: 4x01 | Airdate: Sep 19, 1975
Episode: 4x02 | Airdate: Sep 26, 1975
Episode: 4x03 | Airdate: Oct 3, 1975
Episode: 4x04 | Airdate: Oct 10, 1975
Episode: 4x05 | Airdate: Oct 24, 1975
Episode: 4x06 | Airdate: Oct 31, 1975
Episode: 4x07 | Airdate: Nov 7, 1975
Episode: 4x08 | Airdate: Nov 14, 1975
Episode: 4x09 | Airdate: Nov 21, 1975
Episode: 4x10 | Airdate: Nov 28, 1975
Episode: 4x11 | Airdate: Dec 5, 1975
Episode: 4x12 | Airdate: Dec 12, 1975
Episode: 4x13 | Airdate: Dec 19, 1975
Episode: 4x14 | Airdate: Dec 26, 1975
Episode: 4x15 | Airdate: Jan 9, 1976
Episode: 4x16 | Airdate: Jan 16, 1976
Episode: 4x17 | Airdate: Jan 23, 1976
Episode: 4x18 | Airdate: Jan 30, 1976
Episode: 4x19 | Airdate: Feb 13, 1976
Episode: 4x20 | Airdate: Feb 20, 1976
Episode: 4x21 | Airdate: Feb 27, 1976
Episode: 4x22 | Airdate: Mar 5, 1976
Episode: 4x23 | Airdate: Mar 19, 1976
Episode: 4x24 | Airdate: Mar 26, 1976
Episode: 4x25 | Airdate: Apr 2, 1976
Episode: 4x26 | Airdate: Apr 9, 1976
Episode: 4x27 | Airdate: Apr 23, 1976
Episode: 4x28 | Airdate: Apr 30, 1976
Episode: 4x29 | Airdate: May 21, 1976
Episode: 4x30 | Airdate: Jun 4, 1976
Episode: 4x31 | Airdate: Jun 11, 1976
Episode: 4x32 | Airdate: Jun 18, 1976
Episode: 4x33 | Airdate: Jun 25, 1976
Episode: 4x34 | Airdate: Jul 2, 1976
Episode: 4x35 | Airdate: Jul 9, 1976
Episode: 4x36 | Airdate: Jul 16, 1976
Episode: 4x37 | Airdate: Jul 23, 1976
Episode: 4x38 | Airdate: Jul 30, 1976
Episode: 4x39 | Airdate: Aug 6, 1976
Episode: 4x40 | Airdate: Aug 13, 1976
Episode: 4x41 | Airdate: Aug 20, 1976
Episode: 4x42 | Airdate: Aug 27, 1976
Episode: 4x43 | Airdate: Sep 10, 1976