recording of their next album, Something Special, Charmaine, one of the original Little Angels, left the group. Something Special was the family's biggest-selling LP, reaching 13 on the Billboard album charts. Produced by Perren, the LP spawned another smash million-seller, "Hot Line" (#5 on Billboard Hot 100), as well as "High School Dance" (#17 on Billboard Hot 100). These two singles firmly entrenched the siblings' popular sound in the bubble-gum, teeny-bopper demographic. In an effort to reach a wider, more mature R&B audience, the Sylvers (now seven in number following Olympia's retirement to have children) opted not to re-team with Perren in the summer of 1977 and began writing and producing for themselves. Despite positive reviews, the resulting album, New Horizons, was a commercial disappointment, peaking at #43 on the Billboard album charts and spawning two short-lived singles: "Any Way You Want Me" and the title track. The family went right back into the studio to record their next album, this time with Leon producing. Capitol did not like the new sound and rejected the album. The Sylvers shopped the material elsewhere and by mid-1978 had signed with Casablanca Records. At the same time Leon was recruited by record executive Dick Griffey to become the in-house producer for a new label he had started with Soul Train impresario Don Cornelius. With the family's new album already complete and his brothers and sisters now signed with Casablanca, Leon left the group to write and produce for such Solar Records artists as Shalamar, the Whispers, Lakeside, Carrie Lucas and Dynasty (of which he was a group member). In the meantime, in June 1978, Casablanca released the album Capitol had rejected. Forever Yours included the lead single "Don't Stop, Get Off" (#15 R&B), a song on which Leon shared lead with Edmund. James performed Leon's parts in performances, while Foster replaced Leon as the bassist. The album's title track followed as a second single but failed to chart. With Leon under contract at Solar, and the remaining six Sylvers still under contract to Casablanca, the label teamed the group with the Oscar-winning disco composer Giorgio Moroder (Midnight Express, Donna Summer). The result, released in the summer of 1979, was the aptly titled album Disco Fever. The first single was a discofied remake of Diana Ross' "Mahogany" but failed to chart like its follow-up single "Hoochie Coochie Dancin'". "Have You Heard", a solo effort