 Buddy Hackett was a frequently featured performer, as were Tony Bennett, Milton Berle and Tony Martin.Barbara Streisand and Judy Garland also played the Concord.Martin Luther King received an award at the Concord in 1963 from the Rabbinical Assembly; he addressed the assembled body of rabbis in what was to be his last interview (with Rabbi Everett Gendler) on March 25, 1968.