by Richie Unterberger   A singer who crossed the teen idol sound with a light girl group flavor, Marcie Blane had one huge hit, Bobbys Girl, which made number three in late 1962. The single was saccharine, but incessantly catchy, with its low tremeloed guitar riffs; doofy male Youre not a kid anymore! backup interjections; and Blanes wholesome vocals, preceded by some melodramatic spoken lines. She released about half a dozen other singles on the Seville label, several written, like Bobbys Girl, by the Klein-Hoffman team. None were hits, though, and none were remarkable, falling into the most lightweight sector of the girl group trend.