The Biebs wasn't feeling so well in London during his show, walked off stage and reportedly collapsed.

Here's Scooter telling the crowd what's up:

The best part may be Scooter offering his explanation of how the medical staff wants him in the hospital, but how he's gonna come back out on stage and be Bieber-lite with half the dance moves.

The crowd who doesn't seem to give an eff about Bieber's well being cheers with delight.

Here's Justin's tweet shortly after....

Followed by a nice shirtless pic of him "in hospital"

#PrayForJustin

#LoveJustinMoreThanYourFriendsOrFamily

#ThisIsAllNotAstuntToMakePeopleForgetHeWasLateTheOtherDay