Local rapper P.O.S., or Stef Alexander, is canceling his national tour because he needs a new kidney.
The Star Tribune reports his health cut short a gig at McNally Smith College of Music in St. Paul. The musician says "unidentified trauma" when he was younger caused his kidneys to fail.
Alexander has been on dialysis for about a month and had planned to take a machine on the road, but complications have gotten in the way.
A concert scheduled next Friday at First Avenue in Minneapolis will celebrate the opening of his latest album, "We Don't Even Live Here."
Fans can donate to Alexander via the Rhymesayers website.
Alexander announced the news in this video:
Here's the first single, "Bumper," from the underground hip-hop artist's new album: