I love that recording. Betty Garrett had already been an understudy to Ethel Merman. But Garrett's terrific performance of "South America, Take It Away!", as well as the rest of her performance in "Call Me Mister" was her ticket to a contract at MGM where, among other things, she co-starred with her on-screen love interest Frank Sinatra in 2 films. Unfortunately, the House Un-American Committee allegations against her husband Larry Parks (and being a loyal wife), impacted her film career in the 1950s and pretty much destroyed his. Apparently the two of them did serve as (perhaps vacation) replacements on Broadway for Judy Holliday and Sydney Chaplin during the Broadway run of "Bells Are Ringing" at one point. She did have a big career resurgence by becoming a regular on two of the number one tv series of the 1970s, "All in the Family" and "Laverne and Shirley" later on though. She was always a very enjoyable performer, and I'm glad I got to see her in the Roundabout "Follies" where she and Joan Roberts were among the highlights.