' 24th birthday! You probably know the actress from her turn as Lela on Grace Phipps and April Young on Teen Beach Movie , but did you ever realize that she appeared on The Vampire Diaries in 2014? Austin & Ally
There are a bunch of celebrities you probably didn't realize were guest stars on the show.
Click through the gallery to see celebrities who guest-starred. Let us know if you miss the show by tweeting us @j14magazine! GET MORE:
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Teen Beach star played a bratty actress named Brandy Braxton, who stars opposite Austin in a movie called The Pilot and the Mermaid. She was the mermaid and he was the pilot.
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Sabrina played Lucy Gluckman, a contestant on
America's Top Talent.
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K.C. Undercover, Veronica played Emily on a Halloween episode of Austin and Ally.
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Pretty Little Liars actor played Ally's old friend, Elliot, who she met at art camp when they were kids.
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Dance Moms star played Shelby Hayden, a talented dancer who enrolls at the Austin & Ally Music Factory.
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The Fosters star played Ally's crush, Dallas. He originally worked at the cell phone accessory cart in the mall.
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She played Tilly Thompson, the blogger behind Miami H8TER GIRL.
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Teen Beach star played a member of the Glee Club.
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He played Trent, Trish's secret boyfriend (and then ex), who is temporarily one of Austin's backup dancers.
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Ashley played Elle, a member of the Glee Club who has a crush on Austin.
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Glee actress played Mindy, the manager of Melody Diner who has a major crush on Dez.
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Dove Cameron and Ryan McCartan
Dove and Ryan played Bobbie and Billie, famous siblings who became famous from
The Billie and Bobbie Show.
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Descendants star played Chelsea, a girl who wins a date with Austin.
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She played Violet, a violin prodigy.
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Isaak played Max, a student at the Austin & Ally Music Factory. He started out obsessed with his devices, but learned how to play the keyboard.
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She played a waitress at Melody Diner, who Austin has a crush on.
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Just Add Magic star played Megan Simms in Austin & Ally, a young reporter from a publication called Cheetah Beat.
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Andi Mack star played Mad Dog, the daughter of Face Puncher. The gang accidentally destroys his jacket.