Justin Bieber gave his German fans a big treat this week – he did an acoustic concert for them.

Check out Justin's performance for the Beliebers in Frankfurt on Tuesday. He sang his hits like “Boyfriend” and “As Long As You Love Me.”

Justin is heading back to the United States soon so he can start his U.S. Believe tour! Are any of you Wambie girls lucky enough to be going?

Source: Beautiful Ballad