- "It's a cow, Luke."
- At the BBC Radio 1 Teen Awards in 2015, the band was about two and a half claps into the intro to "She Looks So Perfect" when Michael took a stage dive.
Michael: I was looking at Rita Ora and I was like "hey girl, how you doin'" and then I was just like— *imitates falling sound*
- Michael's explanation:
- No tongue with butt
- In one interview, the interviewer made the band laugh when she confessed to her guilty pleasure.
- The fifth second of summer.
- The band won the NME Worst Band award. Three years in a row.
- Fake betch.
- Michael lost his passport, stranding him at the airport while the rest of the band had to attend the Jingle Bell Ball without him. His bandmates then found his passport after they had arrived in another country without him and proceeded to mercilessly mock him.
- The band is notorious for their history of Target pranks. Examples include pretending to be Target employees to sell their album to middle aged men, going to Target dressed as old people, and surprising a fan with a mariachi band.
- When you search Google images for "lesbian farmer", Ashton Irwin is one of the first results.
- The Don't Stop music video.
- "Spank me again."
- When Ashton first met the band, they teased him mercilessly for his horrible purple shirt. And◊ they◊ never◊ stopped.◊
- "Michael, you are yelling."
- Michael Clifford is known for being a troll◊. So much so, in fact, that he'll annoy the paparazzi into going away◊.
- The band's pick up lines.
- The band made a video of them telling each other dad jokes.
Luke: I don't know who I am!
- In this video, Luke completely forgets how to speak in his own accent:
- Nobody hates 5 Seconds of Summer more than Luke Hemmings. Alternately, nobody hates Luke Hemmings more than 5 Seconds of Summer.
- Michael and Calum spent a large portion of the behind the scenes for the Good Girls music video playing with megaphones.
- "Get away from me, you giant Don't Stop."
- Michael was ecstatic◊ when he discovered that Pewdiepie follows him on Twitter.
- The entire music video for Hey Everybody.
- Michael got the entire audience to turn against Luke.
- "Hey, don't swear!"
- When he realized that Ariana Grande had sent them a question during an interview, Michael became very flustered.
Funny / 5 Seconds of Summer