The Delfonics were a quintessential Philadelphia soul singing group, most popular in the late 1960s and early 1970s. Brothers William and Wilbert Hart formed the group with Rudy Cain / aka Randy Cain in high school in the early 1960s.
Soon, they became known throughout the Philadelphia area, signing with Cameo Records. At Cameo, Stan Watson introduced them to the man who made them famous, producer Thom Bell, then working with Chubby Checker. Bell dreamed of creating a Philadelphia version of Motown and struck gold with the Delfonics, whose first album, released on Watson's own Philly Groove label, featured the hit "La-La (Means I Love You)", in 1968. Four more Bell-produced albums appeared in the next few years: The Sexy Sound of Soul, The Delfonics Super Hits, The Delfonics and Tell Me This Is a Dream. Among the Delfonics' popular hits were "Didn't I (Blow Your Mind This Time)", "Lying to Myself", and "Ready or Not Here I Come (Can't Hide from Love)".