Poor, poor Kourt.
The source says of Disick:
Justin took a tumble moments before a photoshoot this weekend, AND has the Insta-vid to prove it!
The Biebs teased fans with this tweet:
If u didn't hear I fell down the stairs this morning. Check my Instagram for details. It was epic :) lol
— Justin Bieber (@justinbieber) June 23, 2013
"So I decided I was gonna fall down the stairs, and so I did! So that's exactly what I did!"
You can see a nice close up of some scratches on his neck.
No doubt lil' Biebs hit that floor hard!
At least he has a sense of humor about the snafu, right?
Justyy tweeted this hashtag along with the video:
Ch-ch-check it out (above)!
[Image via Instagram.]