She's a hooker with a heart of gold ... and a voice to match!

Jennifer Love Hewitt has made a career off of her famous curves and she's flaunting them again for a sexy new music video promoting her Lifetime show "The Client List."

Sporting a number of belly-baring two-pieces, gyrating on stage and getting doused with water (a la "Flashdance"), Hewitt looks sexier than ever while singing a vampy version of "I'm a Woman."

This isn't the first time she's sang and stripped for the show. For Season One, Hewitt performed "Big Spender" from "Sweet Charity."

The series -- which revolves around a mom who gives "extras" at a massage parlor to support her family -- returns on March 10.

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