There were some musicians over the years who would be thrown all sorts of things from the crowd, mainly from people trying to get a band member's attention.
But unfortunately, there are people out there who want to ruin a concert by throwing unsavoury things on stage.
The artists luckily don't get hit or hurt from the projectiles most of the time, but every now and then they land on their target.
That's what former One Direction star Harry Styles encountered during a performance in London. As he played the song 'Kiwi' from his debut solo album, some excited fans started throwing the green fruit on stage.
Credit: PA
He told the screaming crowd: "You may have seen me fall earlier during this song... it appeared to be a Kiwi.
"That was the culprit, some green seedy mush. Look, there's another. This could end up being a problem."
As a result, supermarket ASDA decided to restrict sales of Kiwi fruit from the Hulme Superstore yesterday ahead of his concert in Manchester.
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A spokesperson told the Sun: "We know our customers love Harry Styles and we feel it's our duty to protect a fellow Mancunian from any 'bad kiwis' amongst us.
"We'd hate to see a repeat of the mishap this evening, so to avoid any slippery situations, we feel this is a necessary measure."
Staff have been told to ask for a customer's ID if they look under 25 years old and politely tell them they can't purchase the Kiwi fruit.
Credit: PA
The ban is reminiscent of Reading and Leeds Festival refusing to allow concert-goers to bring in pineapples. While that might seem to be a very odd fruit to restrict, it was due to an ongoing joke with Glass Animals fans.
An increasing amount bring the prickly fruit to performances because of the song 'Pork Soda', which has the lyrics, "Pineapples are in my head/Got nobody 'cause I'm brain-dead/Pineapples are in my head."
When the ban was announced, drummer Joe Seaward said: "Anyone who wasn't bringing a pineapple definitely is now. It's fruitist. Watermelons are fine, but not pineapples?"
Festival organisers assured that they were doing it for safety reasons, saying: "Organisers were a little concerned about hundreds of pineapples turning up on site so decided to ask fans not to bring them along. The tongue may be slightly in cheek on this one."
So if you're planning on bringing a Kiwi fruit to a Harry Styles concert, you won't be able to get one at ASDA.
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