Carlos Santana passed out while on stage ... Billboard reporter Gary Graff live-tweeted updates from the concert, first writing that Santana had "just collapsed onstage" and was "being treated ...

Rock legend Carlos Santana is recovering after passing out during a concert in Michigan Tuesday evening. His upcoming show for Wednesday in Pennsylvania has been postponed, according to his manager.

Carlos and the band have been frequent visitors ... This is the ultimate Santana live concert and absolutely not to be missed.

The guitarist breaks down his guest-heavy compilation album, the possibility of another reunion with the Woodstock-era band, and why he’ll never agree to a farewell tour ...