The 'Mahna Mahna' segment is one of the most legendary sketches from the series premiere of The Muppet Show in 1976. The scene features the wild-haired character Mahna Mahna, performed by the iconic Frank Oz, alongside two pink, cow-like creatures called the Snowths, performed by Jerry Nelson and Richard Hunt. The comedic tension builds as Mahna Mahna’s increasingly erratic scat-singing is met with the stoic, rhythmic 'Do doo be-do-do' backing vocals of the Snowths, eventually leading to him wandering off-stage while still singing. In internet culture, this clip is the universal shorthand for intrusive thoughts, sharing a single brain cell with a friend, or any situation where someone breaks a serious rhythm with something nonsensical. It perfectly represents those 'no thoughts, head empty' moments where a catchy tune takes over your consciousness. Example captions include: 'My last two brain cells during a final exam,' 'When you say something stupid and your best friend joins in immediately,' and 'Me trying to have a serious conversation while this song plays on a loop in my head.'