Justin Bieber kicks of the European leg of his My World tonight in Birmingham, United Kingdom. "feels great to be back out on tour. everyone is back together and excited. got to go out and give 10 tickets away and surprise some fans," Justin Tweeted.

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Justin also Tweeted a video featuring his BFF Jaden Smith, whose little sister, Willow, is opening for Justin:

What do you think is the best thing about Justin Bieber and Jaden Smith's friendship?

Photo: Courtesy of Paramount

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