From Jenna's return to Rosewood to Alison and Emily's full-blown makeout sesh, there was definitely no shortage of jaw-dropping moments in last night's 100th episode of Pretty Little Liars. As expected, we now have even more unanswered questions swirling around in our heads. What was with that huge explosion at the end? Who is Bethany Young and why was she in Alison's grave? Oh, and Emily's new swim friend Sydney is working with Jenna? Say what?!

It looks like we're about to see a lot more of Sydney, which is fine with us since we love the actress who plays her. Chloe Bridges has been in some of our all-time favorite movies and TV shows, including Camp Rock 2: The Final Jam and The Carrie Diaries. Plus, she's besties with, like, all of our favorite stars.

Click through to see 10 of Chloe's famous BFFs, then let us know which ones surprise you the most in the comments below. What do you think of her character on PLL?