Bananas in Pyjamas began as an Australian children's television series in 1992, based on a song written in 1967 by Carey Blyton. It centres on B1 and B2, twin bananas who wear pyjamas and live alongside teddy bears and Rat in a Hat. The series later returned as an animated version in 2011, introducing the intro to a new generation. Clips and the theme are still shared online for nostalgia edits, throwback posts and ironic contrasts with adult or unexpected footage.