Cindy Valentine, born Valentine Cinzia Leone, is an Italian-born composer, producer, actress, and performing artist who was raised in Toronto, Ontario, Canada. She is now a U.S. citizen and resides primarily in New York, New York.

She began her musical journey at the age of seven, studying at The Royal Conservatory of Music in Toronto. She entered a singing contest and won first place, earning a month of opera training at the Il conservatorio Di Milano in Italy under Claudio Villa.

Cindy Valentine signed with Juno Award-winning composer and producer Tony Green as her producer under the CBS Columbia Records label in 1984. She adopted the stage name Cindy Valentine, curiously omitting the Leone surname she shares with her family patriarch, famed Spaghetti Western director Sergio Leone.

During her six years as a lead vocalist with CBS, PolyGram, and Arista Records, she remained engaged with the creative process. She contributed percussion, keyboards, and backup vocals, in addition to songwriting on her records.

Cindy Valentine hit the Billboard Dance/Club charts in 1989 with "Secret Rendez-Vous" and "Pick Up the Pieces (To My Heart)," both co-written by Tony Green and herself. She also co-wrote the songs "Finest Hour" and "Never Gonna Be the Same Again" for the 1989 Halloween classic, Teen Witch, in which she played the part of Shana the Rock Star.

Her additional soundtrack credits include Repossessed (1990), Mannequin Two: On the Move (1991), and Another 9 1/2 Weeks (1997). In the 1990s, she transitioned her career toward soundtrack and film, working behind the scenes as a composer and musician.

Since 2000, she has been involved with horror, documentary, and art genre films, such as the critically acclaimed 4Chosen: The Documentary, and is credited as Producer on Ruth and co-executive producer on Souvenir Views.

Cindy Valentine is also an occasional television host on Time Warner's New York City local interest show, On the Beat, and hosted the documentary film Lisa Loeb Songwriting: Just Like You.

Her personal life is relatively private, and she is currently single. She has no children, and there is limited information about her past relationships.