what are some of her works?
"Be Good to Me",  "He Said She Said", "Headstrong"
Ashley Tisdale
 Records; she began working on her debut studio album in 2006. "Be Good to Me" (2006) was released as the album's lead single, with "He Said She Said" (2007) being released shortly afterwards as the second single. Tisdale's debut album, "Headstrong" (2007), was released in February; the album featured elements of dance-pop and hip-hop music. The album sold 64,000 copies in its first week of release in the United States, debuting at number five on the "Billboard" 200. The project was a commercial success, selling over 500,000 copies in the country. "He Said She Said" was later re-released as the album's second single to promote the album, and went on to earn a gold certification from the RIAA. 
who will be directing high school musical 4 UNANSWERABLE who is ashley tisdale? An American actress, singer, and producer when was she born? July 2, 1985
wiki:20910439
Ashley Tisdale [SEP] 2005–2009: Breakthrough with films and music career
Tisdale joined the main cast of the Disney Channel series "The Suite Life of Zack & Cody" in 2005, and would continue to star in the show until 2008. The show proved to be a hit for the network, and earned Tisdale a Nickelodeon UK Kids' Choice Awards. Tisdale had her breakout role as Sharpay Evans in the Disney Channel film "High School Musical" (2006). The film was the network's most successful film of 2006, receiving 7.7 million viewers upon its premiere. The soundtrack for the film, featuring numerous contributions from Tisdale, went on to sell over three million copies in the United States alone.