Stepping out for a momentous occasion, Kate Middleton showed up at the 60th Anniversary Celebration of the Coronation of the Queen this morning (June 4).

The Duchess of Cambridge was gorgeous and very pregnant as she arrived at Westminster Abbey with her hubby Prince William for the first public event they've attended there since the wedding more than two years ago.

Today’s ceremony marks a wonderful milestone in Queen Elizabeth II’s reign and will be divided up into Recognition, Anointing, Homage, and Thanksgiving, all taken from her original Coronation back in 1953.

Additionally, Prime Minister David Cameron will give a reading and actress Claire Skinner will read a poem from Poet Laureate Carol Ann Duffy. It’s going to be a Royally good time!