The High School Musical star split from music video director Speer last December (11), and she was subsequently linked to Boys Like Girls frontman Martin Johnson.
Tisdale reconciled with Speer earlier this year (12), but it appears their romance is over - she is now dating Annie Automatic musician French, according to UsMagazine.com.
A source tells the website, "She likes those rocker types. They have mutual friends and just met through hanging out. Ashley and Scott split for the same reason they did last time. Their relationship just ran its course."