In 2003, she starred as lead singer Galleria Garibaldi in "The Cheetah Girls", a Disney Channel Original Movie about four city girls who dream of becoming superstars. The film was the channel's first musical and was the basis for another franchise, including dolls, video games, and platinum-selling soundtracks. The film also starred Adrienne Bailon as Chanel Simmons, Sabrina Bryan as Dorinda Thomas, and Kiely Williams as Aquanette Walker. The film was directed by Oz Scott, and produced by Grammy-winner Whitney Houston. It attracted more than 6.5 million viewers opening night, making it (at the time) Disney Channel's most-watched movie and highest-rated Disney Channel broadcast of 2003. The film soundtrack, "The Cheetah Girls", debuted at No. 33 on the "Billboard" Top 200 and is certified for Double Platinum sales by the RIAA for sales of 2 million copies. It was the second-best-selling soundtrack of 2004, behind "Shrek".