Ashley Benson and Lucy Hale Dance in Flash Mob!

Check out this cute one minute video of Pretty Little Liars stars Ashley Benson and Lucy Hale while on their Bongo photo shoot.

The girls played along and jumped in to a flash mob to Nsync's "Bye Bye Bye."

Ashley and Lucy were recently chosen to be the 2012 face of Bongo and they've already released some really cute ads (i.e. the picture on the left).