Conversation so far:
Who was the Fabulous Kangaroos?
The Fabulous Kangaroos was a professional wrestling tag team that existed in various forms from 1957 until 1983.
Were the Fabulous Kangaroos an international wrestling team or did they travel?
After working in Stampede for a while The Fabulous Kangaroos started to travel across the United States.
Did the Fabulous Kangaroos win any titles?
The Kangaroos were the first Eastern Sports Association International Tag Team Champions.
Are there any other interesting aspects about the Al Costello article?
In the World Wrestling Association of Indianapolis, the Kangaroos held the WWA World Tag Team Championship twice.
How long did the kangaroos wrestling team stay together?
The Fabulous Kangaroos existed in various forms from 1957 until 1983.
Can you share anything else about the Al Costello article?
On one occasion in August 1958, The Kangaroos, or Kangaroo Men as they were billed, nearly caused a riot in Madison Square Garden.

Question: Why was there nearly a riot in Madison Square Garden?
Self-contained rewrite: Why was there nearly a riot in Madison Square Garden caused by the Kangaroos wrestling team?