*There are no spoilers in this video so don't stress PLL fans*
It's no secret that Steph's favourite show EVER is pretty Little Liars.....
So before she watched the finale, Guy and Sam planned to prank her by spoiling the episode with the name of 'A.D'. What guy didn't realise was that he was the one getting pranked all along and we literally can't stop laughing.
What the full video above!