Ashley Michelle Tisdale (born July 2, 1985) is an American actress, singer, and producer. During her childhood, she appeared in more than 100 TV advertisements and had roles in theatre and television shows. In 2004, she was cast as Maddie Fitzpatrick in Disney Channel's The Suite Life of Zack & Cody, and she rose to prominence in 2006 as Sharpay Evans in the television film High School Musical. The High School Musical series included three films and the spin-off Sharpay's Fabulous Adventure (2011). Tisdale's resultant popularity led her to sign a solo record deal with Warner Bros. Records in 2006. Her debut album Headstrong (2007) was certified gold by the Recording Industry Association of America (RIAA) and includes the single "He Said She Said". Two years later, Tisdale released her second studio album, Guilty Pleasure. In 2013, she announced her intention to make music again and confirmed that she has been recording her third studio album.

Since 2007, Tisdale has voiced Candace Flynn in the Disney Channel's three-time Emmy Award-winning animated series Phineas and Ferb. The cartoon quickly became television's most-watched animated series among kids and tweens and has received critical acclaim. Her other roles have included Savannah Monroe in The CW's television drama series Hellcats (2010–11), Jody Sanders in Scary Movie 5 (2013) and the title character of Hub Network's animated series Sabrina: Secrets of a Teenage Witch (2013–present), for which she received a Daytime Emmy Award nomination in 2014.