Queen Elizabeth is very much known as a royal who does things by the book but that doesn't mean she doesn't have a sense of humor.

The latest evidence of the monarch's cheekiness comes with ITV's resurfaced "The Queen At 90" documentary. The film offered a peek into her day to day life, including her yearly travel to Balmoral.

During one particular segment, cameras caught when the Queen invited the Prime Minister at the time, David Cameron, to Balmoral, according to Express. It was during this moment that the cameras panned around the room and viewers caught a glimpse of the room's decor -- more specifically, a couch cushion that read, "It's good to be Queen." And viewers agreed with the sentiment.

"HELL YAASSSS," one Twitter user wrote, per The Sun, while another shared, "The Queen has the best cushion."

Queen Elizabeth typically spends three months at the Scottish Castle during the summer and will have visitors over often. This yea,r some of those visitors included Prince William, Kate Middleton, and their children, as well as, Sophie, Countess of Wessex, Prince Edward and their kids.

Meghan Markle and Prince Harry surprisingly didn't visit the Queen but had an understandable reason.

An insider shared with The Sun, "Harry and Meghan had no plans to go to Balmoral this summer as they felt Archie was too young."

Another reason the Duke and Duchess of Sussex may have chosen not to visit could be due to their alleged feud with the Duke and Duchess of Cambridge. As previously reported, had both families been visiting at the same time, they were likely to have been separated.

Queen Elizabeth II
Queen Elizabeth II smiles as she arrives before the Opening of the Flanders' Fields Memorial Garden at Wellington Barracks on Nov. 6, 2014, in London, England. Getty Images/Stefan Wermuth-WPA Pool