Hilarious video of what appears to be Justin Bieber falling off a skateboard leaks online

Poor Justin Bieber really isn't having the best week.
After coming under fire for appearing to mime at his latest performance in London, he appears to have had an unfortunate mishap on a skateboard.
A video has made its way online that appears to show what looks very much like the Sorry singer trying out a half-pipe.
As he attempts a trick, the singer falls to the ground but shakes off the mistake.

watch video after the cut.......