7/29/2011 5:17 AM PDT

Meat Loaf Faints At Pittsburgh Concert -- Watch MeatLoaf VIDEO

Scary moment at a Meat Loaf concert in Pittsburgh last night -- when Meat Loaf collapsed on stage ... and medics rushed to his aid. But this story has a happy ending.

After a short time on his back, Mr. Loaf actually got up ... regained his composure ... and FINISHED THE SHOW!

A short time later, during a performance of "Paradise by the Dashboard Light" -- Meat explained everything that went wrong last night:

"I f**king fainted. I have asthma ... I can't breathe ... and then ... oh wait, I forgot ... I got poked by a pin and bled half to death ... and then I got slapped in the face and my tooth is loose."

Helluva night.