Justin Bieber Pranks Willow Smith On Stage,Whip My Hair(Full Video)

Justin Bieber "pranked" tour mate Willow Smith during a concert in Manchester last night.The 10-year-old daughter of Will and Jada Pinkett Smith had been performing her track 'Whip My Hair' when Bieber crashed the set alongside friends including the singer's brother Jaden.He briefly showed off his hair whipping skills alongside Smith, before disappearing backstage to allow her to finish her set."