Although Bruce Dickinson is widely regarded as the definitive vocalist of Iron Maiden, fans of the band still hold much respect for Paul Di'Anno, who sang on the albums 'Iron Maiden' (1980) and 'Killers' (1981). However, at Di'Anno's recent tour stop in Ukraine, the vocalist got into an altercation after being heckled by an audience member.

Di'Anno has been making music since his departure from the band, along with performing songs from Maiden's first two albums around the world. The 54-year-old Di'Anno has claimed that he will be bidding fans farewell, with 2013 to be his final year as an active touring musician. In what could possibly be his final Ukrainian show, Di'Anno found himself in a war of words after being heckled with "Bruce Dickinson" chants by a member of the audience.

Mocking the broken English of the heckler, Di'Anno replied, "I am number one vocal Bruce Dickinson," at around the 1:45 mark in the video below, adding, "I'm sorry, I don't sing opera," before comically singing the chorus of the Maiden staple 'Run to the Hills.' "If you like Bruce Dickinson; go home. Listen to his records. Why did you come and buy a ticket, motherf---er? This is real punk, man. This is what made Iron Maiden, not the money-making machine. If you don't like it, go f--- yourself."

Di'Anno continues, "Better still, you wanna fight? You'll be sorry. I'll rip off your head and s--t down your neck, you motherf---er." Di'Anno threw some homophobic slurs at the Ukrainian fan, who tried to smooth things over with Di'Anno throughout the rest of his set. Di'Anno seemed to forgive the fan as the show came to a close with a cover of 'Blitzkreig Bop' by Di'Anno's "favorite band," the Ramones.

Check out Paul Di'Anno's Ukrainian altercation in the video below.

Watch Paul Di'Anno's Altercation with a Ukrainian Audience Member [NSFW]