Royal Mail and Tesco recited the 'Pokemon' theme tune on Twitter.

Royal Mail and Tesco recite Pokemon theme tune

When Emma tweeted the Royal Mail and Tesco asking where her postman was with her copy of the Nintendo 3DS title Pokemon X was, the two companies responded in a hilarious fashion.

In Pokemon X, players travel an all-new land with all new Pokémon such as Chespin the Grass Type, Fennekin the Fire type or Froakie the Water type! But you’ll also be greeted by some familiar faces too like Pikachu, Magikarp and Psyduck to capture and train, as you once again set out to become the best Pokemon trainer around.