Discovered by producer Quincy Jones while singing at a hotel in Manhattan.

He went on to produce her most successful recordings, including "It's My Party", which spent two weeks at #1 on Billboard's "Hot 100" chart and three weeks on its R&B chart (USA) in June 1963.

Introduced her last major hit, "California Nights," on an episode of the TV series _"Batman" (1966/II)_ --on which, coincidentally or not, her uncle Howie Horwitz was one of the producers.

Sister of Michael Gore.

Inspired a storyline for the movie Grace of My Heart (1996) in which a 1960s bubble-gum singer is shown to be a closet lesbian. Coincidentally, Lesley helped with music for the movie, and in the movie the closet lesbian singer records a song Lesley herself recorded, "Secret Love".

She often hosts "In the Life" (1992), a magazine show about gay and lesbian issues.

When she was 11 years old her parents took her to her first Broadway musical, "My Fair Lady". She loved it so much that she asked her parents to see it again and again.

Is mentioned in the song "Life Is a Rock But the Radio Rolled Me" by Reunion.