Every single answer except for how the moms got out of the basement, youre never gonna know!

Speaking of surprises, Goldstick reveals there will be a musical number before the shows over.

All of them have incredible hidden talents and singing happens to be one of them, he says.

I. MARLENE KING (EXECUTIVE PRODUCER, “PRETTY LITTLE LIARS”), SHAY MITCHELL, LUCY HALE, SASHA PIETERSE, OLIVER GOLDSTICK (EXECUTIVE PRODUCER, “PRETTY LITTLE LIARS”)

Credit: Freeform/Image Group LA

Also happening in the final 10 episodes: a lot of returning characters and a time jump.

Pretty Little Liarsreturns Tuesday, April 18 at 8 p.m.