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Original show tune by Rodgers and Hart; from the 1937 musical "Babes in Arms"
"Where or When" is a show tune from the 1937 Rodgers and Hart musical Babes in Arms. It was first performed by Ray Heatherton and Mitzi Green. That same year, Hal Kemp recorded a popular version. The song also appeared in the film version of Babes in Arms two years later. Wikipedia