Justin Bieber is not having a good month of concerts. Earlier he was puking on stage, now he takes a bit of a stumble down some stairs at a concert.

The fall happens towards the end of the video at about the 1:59 mark.

Carly Rae Jepsen and Justin Bieber were performing their duet "Beautiful" for a sold-out crowd at the Credit Union Centre in Saskatoon when Bieber tripped while making his way down a set of stairs.

Fans gasped in horror as Bieber  fell, and a loud thud could be heard throughout the arena as his microphone picked up the sound of his stumble.

Jepsen quickly offered her hand and helped him back to his feet as they finished their track.

Justin, maybe you should take a day to yourself to clear your head. These concerts maybe a little to much right now, I am just looking out for you.

[MSN]