Justin Bieber concert jeans singing

Justin Bieber concert jeans singing MrPaparazzi

Work it, Biebs!

Tween sensation Justin Bieber sang his heart out in Manchester, England on Sunday as part of his My World tour, with supporting act Willow and Jaden Smith. Now that's a lot of hair whipping back and forth!

Just the other night Justin and Jaden had a boys' night out in London, dining at Mr. Chow together. Meanwhile, Willow's been Tweeting, "About to ROCK Manchester" a few times before the big show.

Bieber will conclude the European leg of his world tour in Munich, Germany in early April. Then the 17-year-old will head to Asia and Australia.

What's his girlfriend Selena Gomez been up to? Click below the cut to find out!