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OTRC: Willow Smith pranked by Justin Bieber - see video

Justin Bieber pranks Willow Smith during a concert in Manchester in the United Kingdom on March 20, 2011. (youtube.com/user/BestofJBieber)

Willow Smith was recently pranked by Justin Bieber, who dashed on stage at a UK concert with a cowbell as she sang her hit song "Whip My Hair."

The 10-year-old daughter of Will Smith and Jada Pinkett Smith is currently on tour with Bieber, a 17-year-old pop star whose new documentary "Never Say Never," has become a box office smash.

Willow Smith, donning long, neon yellow extensions in her hair, appeared unbothered by the singer's stunt at the concert in Manchester but later Tweeted: "My big brother's Justin and Jaden pranked me on stage tonight...#payback!!!"

Check out a fan-made video of Justin Bieber crashing Willow Smith's performance below.

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