Denny Randell (also a hit for The Spinners in 1979, and in Ireland for Boyzone in 1994), "Opus 17 (Don't You Worry 'Bout Me)", and, with Bob Crewe, "Let's Hang On!". Randell and Crewe later co-wrote Valli's solo hit "Swearin' To God". In 1965, Randell and Linzer wrote and produced most of the songs for the R&B girl group, The Toys, including their singles "A Lover's Concerto" (adapted from "Minuet in G major", a classical music piece), and "Attack!" Another Toys recording written by the duo, "Can't Get Enough Of You Baby", was later covered by the garage band ? and the
Walk On By (song) Suyker and Allen Hanlon on guitar, Max Pollikoff, Charles McCracken, Eugene Orloff and Julius Held and George Ockner on violin, Harold Coletta on viola, Lucien Schmit on cello, Paul Winter on saxophone, and George Devens on percussion. Warwick also recorded a German version of the song, entitled "Geh Vorbei". The Toronto folk-rock group Bobby Kris and the Imperials released a fairly straight-ahead cover version in late 1965. The single became a major hit in Canada, reaching number 8 in early 1966, but "Walk On By" was to be the band's only hit. Funk/soul musician Isaac Hayes released a cover version