The evening performance in Memphis is when the infamous "cherry bomb" incident took place. While George was performing "If I needed someone," some guy in the audience set off a cherry bomb and it made a very large "boom" sound, which caused the audience to scream, not in delight--but in fear and made the Beatles all look to make sure John Lennon was still standing. It was a scary incident for sure, however the Beatles kept going and played another concert for a grateful audience.