How would you react if your favorite artist popped up out of nowhere to give you the surprise of your life? Well, that's exactly what happened to these incredibly lucky die-hards, who were all left stunned when their all-time fave celebs -- like Justin Bieber, One Direction, Taylor Swift, 5 Seconds of Summer and more -- each appeared and shocked the living daylights out of their respective fans.

In our latest Pop Cuts video, we've compiled the sweetest, funniest and most heartwarming clips of celebs surprising their fans -- and let us be the first to tell you: You won't be able to get through this one without choking up. Whether it's 1D scaring fans by pretending to be wax figures, Beyonce randomly jumping into a school group's dance routine or Pharrell's mere presence causing a nursery school teacher to burst into tears, the best part of these jaw-dropping celeb surprises is the fan reaction. Because nothing in the world can compare to your wildest dreams coming true.

Watch our epic compilation of celebs surprising fans in the video above!

Plus: See Harry Styles, Justin Bieber + More Celebs' Surprising Tattoos