A 25 year-old man is in stable condition after being stabbed following GZAs performance at Torontos North By Northeast Festival.

According to initial reports, the victim got into an altercation with a suspect whom allegedly threw an item at his girlfriend.

After chasing the suspect through the crowd of over 2,000 people, the man was apparently stabbed in the lower back, and underwent emergency surgery at nearby St. Michaels Hospital.

Descriptions of the suspect are vague, stating only that he is an Asian man in his 20s, who wore a blue baseball cap and jeans.

The rest of GZAs set was completed without incident.

The premier lyricists latest album, Pro Tools, was released last year to critical acclaim.

It featured production from Black Milk and RZA, and the 50 Cent diss Paper Plate.

At press time, police could not verify if any witnesses to the stabbing.