In 1975, Moore signed with Buddah Records and released the critically successful R&B album Peach Melba, which included the minor hit "I Am His Lady". The following year, she scored her first significant hit with Van McCoy-penned "This is it" which reached the Billboard Hot 100, the top-20 position on the R&B chart, & top-10 on the UK Singles chart, becoming her biggest success in that country."This is It" also became the number 1 disco track in the UK for that year. In 1976, she scored her third Grammy nomination with the R&B ballad "Lean on Me", which had been originally recorded by Vivian Reed and later by Moore's idol Aretha Franklin, who recorded the song as a B-side of her 1971 hit "Spanish Harlem". The song is most notable for Moore's extended long note at the end. In 1983, she re-recorded the song as a tribute to McCoy, who had died four years earlier. Throughout the rest of the 1970s, Moore struggled to match the success of "This Is It" with minor R&B/dance