From Jade Thirlwall's hilariously serious selfie to Ariana Grande's fishy face, a lot of funny stuff happened on Instagram this week. One Direction got together to snap a silly pic on stage and Ashley Benson and Tyler Blackburn snapped a silly photo while tuning into Pretty Little Liars. Now it's up to YOU to decide which celeb has the best silly pic.
Click through the gallery to see all the week's silliest photos, then vote in the poll below for the one that's your fave. Tell us in the comments: Who did you vote for?