Final answer:
The Beatles opened their iconic Shea Stadium performance with "Twist and Shout," setting the stage for a historic concert.
Step-by-step explanation:
The Beatles opened their Shea Stadium performance with the song "Twist and Shout." This concert, held on August 15, 1965, was a landmark event in the history of rock music, marking one of the first times a rock band played at a major stadium and to a record-breaking audience at the time.
"Twist and Shout" is a well-known track originally recorded by the Top Notes but gained immense popularity with the Beatles' energetic cover, which showcased their appeal and set the tone for what was to be an unforgettable live performance.