Genre: Adult Contemporary
Nino Tempo & April Stevens (born Antonino and Carol LoTempio) are a brother and sister singing act from Niagara Falls, New York. Formed in the early 1960s when Nino Tempo and April Stevens signed as a duo with Atco Records, the group had a string of Billboard hits and earned a Grammy Award as "best rock & roll record of the year" for the single "Deep Purple".
"Deep Purple" is notable for April Stevens' speaking the lyrics in a low, sweet voice during the second half of the song while her brother sings. When the duo first recorded the song as a demo, Tempo forgot the words, and Stevens spoke the lyrics to remind him. The producers thought Stevens' spoken interludes were "cute" and should be included on the finished product, but according to Stevens, her brother was not as easily convinced: "He didn't want anyone talking while he was singing!"
Source: https://en.wikipedia.org/wiki/Nino_Tempo_%26_April_Stevens