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Demetria Devonne "Demi" Lovato[1] (born August 20, 1992) is an American actress and singer-songwriter. She is best known for her role as Mitchie Torres in the Disney Channel Original Movie, Camp Rock, and its upcoming sequel, Camp Rock 2: The Final Jam and Sonny Munroe in Sonny With A Chance. Besides acting, she is also a solo music artist and released her debut album Don't Forget on September 23, 2008. The album debuted at #2 on the Billboard 200 selling over 89,000 copies in the first week.[2] Lovato released her second album, Here We Go Again, on July 21, 2009.[3] The album debuted at #1 on the Billboard 200 selling over 108,000 copies in the first week.

Ashley Michelle Tisdale (born July 2, 1985) is an American actress, singer and television producer who rose to prominence portraying the candy-counter girl Maddie Fitzpatrick in Disney Channel's The Suite Life of Zack & Cody and the female antagonist Sharpay Evans in the High School Musical film series. Her role as Evans required her to perform several songs in the film series' soundtracks. Tisdale became the first female artist to debut with two songs simultaneously on the Billboard Hot 100,[2] in the week of February 12, 2006,[3] with "What I've Been Looking For" and "Bop to the Top", both songs from the first High School Musical soundtrack.

Vanessa Anne Hudgens(born December 14, 1988)is an American actress and singer. After working in local theater plays and television commercials in her childhood, Hudgens made her screen debut in the 2003 drama film Thirteen as Noel. She next starred in the 2004 science-fiction-adventure film Thunderbirds. Hudgens's most prominent role was as Gabriella Montez in the High School Musical series. She earned critical acclaim for her role in the 2009 film Bandslam.

Hudgens's debut album V was released on September 26, 2006. The album entered the Billboard 200 at number twenty four, and was later certified Gold. Hudgens released her second album, Identified, on July 1, 2008 in the U.S.