Marilyn Manson — Collapses On Stage in Canada

Scary moment … well, scarier moment … during a Marilyn Manson concert in Canada last night when the rocker collapsed on stage during a live concert.

Manson was midway through his hit “Beautiful People” in Saskatoon when he stopped singing, turned to the side … and keeled over on the stage (scroll to 1:13).

Concertgoers were confused at first … as the band kept playing … but soon realized it wasn”t a joke when a couple of stagehands rushed in and began to tend to the singer.

There are reports that Manson vomited on the stage … but it”s unclear from the footage.

Manson was eventually helped off the stage. We”ve got calls in to his people to find out his condition.

Story developing …