A concurrent US release of Springfield's "I Just Don't Know What to Do with Myself" was preempted by the presence of Springfield's "Wishin' and Hopin'" in the US Top Ten over the summer of 1964. Springfield's "I Just Don't Know..." received a belated US release in October 1965 featured on a single with Springfield's current UK hit "Some of Your Lovin'"; that month Springfield made a promotional junket to the US which included performances of both of the single's tracks on the TV shows Hullabaloo and Shindig but neither side reached the Billboard Hot 100.
