Happy 27th Birthday, Ashley Tisdale!

Ashley Tisdale and her lovely buttocks turn 27 today.

The former High School Musical star continues to mature both personally and professionally, recently booking an unexpected role on gritty FX drama Sons of Anarchy. She will appear on a pair of Season 4 episode as an escort.

Tisdale remains close friends with Vanessa Hudgens and has been dating music video director Scott Speer for years. She helped launch the career of Carly Rae Jepsen by appearing - alongside Hudgens and Justin Bieber - in the video for "Call Me Maybe."

Ashley has also voiced Candace on the animated hit Phineas and Ferb and will appear in Scary Movie 5.