Justin Bieber is currently touring with Willow Smith, and though the two young superstars have bonded over the past few weeks, that doesn't mean that the pint size singer is safe from Justin pranks!

During Willow's performance of "Whip My Hair" in Manchester, England on Sunday, Bieber, manager Scooter Braun, "swagger coach" Ryan Good and Willow's big brother Jayden made a surprise appearance onstage dressed in bright makeup and hair extensions. Not only were they causing chaos by running around while Willow tried to sing, but Justin walked around onstage banging a cowbell, which must have been incredibly distracting!

Once off stage, Willow told the cameras, "They got me, but it is not over; revenge is sweet and is served on a cold dish." She then tweeted, "My big brothers Justin and Jaden pranked me on stage tonight ... #payback!!!"

Can't wait to see what she does to get back at the Biebster!