Lip Service (film)

Lip Service was the original name of a 2013 American feature film, a teenage romance now also known as Pop Star. Carlos Portugal and Robin Bain collaborated in the writing, and Carlos Portugal directed the film, starring Christian Serratos, Ross Thomas, Eric Roberts and Rachele Brooke Smith.

A struggling singer played by Christian Serratos thinks she has finally found her big break, when a famous music producer discovers her. She supposedly falls In love with the producer when he steals her voice and lets a famous socialite use her voice as her own as she cannot sing. She ends up with the producers assistant and they start up a band that becomes famous called Los Santos, which includes her brother.

Source: Wikipedia