Demi Lovato and Fifth Harmony recently went on tour together for Demi’s Neon Lights Tour. As the tour began to wind down and the last performance of the tour finally arrived, Fifth Harmony decided to prank Demi by running on stage with silly string for a silly string fight while Demi sang “Give Your Heart A Break” in Indianpolis.

Watch the super fun and awesome silly string fight unfold by watching the video below!