The landmark’s iconic chimneys have been lit up in pink to let people know that Peppa Pig is going to have a little sister.
The animated show is celebrating the new addition with an hour-long special called Peppa Meets The Baby on the 30th of May.
It features ten episodes showing Peppa and her brother George prepare to welcome their new sibling.
The third child of Mummy and Daddy Pig will then join the family on-screen in the autumn.
