Marian Gold developed most of the lyrics while going to a dentist. The theme was based on two friends who were involved in the sordid drug scene of Berlin's Zoo station. The song tells of such lovers who fantasize about being drug-free. The refrain "big in Japan" symbolises this idea of being successful in another world.
Meanwhile in Berlin
Molly Nilsson
I'm riding the train to the zoo
While i'm writing a postcard to you
But what I wanna write never fits
While i'm writing a postcard to you
But what I wanna write never fits