The Kensington Palace Twitter account just brilliantly trolled all the Royal Baby-watchers

The Duke and Duchess of Cambridge introduce their son Prince George to the world for the 1st time #ThrowbackThursday pic.twitter.com/MtGAZWKpr3
— The Prince and Princess of Wales (@KensingtonRoyal) April 30, 2015
Alas, it was a a throwback to George's birth but that didn't stop the tweet giving all the Royal Baby-watchers a bit of a fright.