The cameras loved Prince Louis at King Charles III’s coronation.

Prince William and Kate Middleton’s youngest son stole the show again with his funny faces, nearly one year after doing the same at Queen Elizabeth II’s Platinum Jubilee.

The 5-year-old arrived at Westminster Abbey with his parents and Princess Charlotte on Saturday, yawning before his entrance.

After walking in holding hands with his sister, Louis took a seat between the 8-year-old and their mom — where he showed his sleepiness with more epic yawns.

Social media users praised the “relatable” royal for his “iconic” behavior.

“Prince Louis’ yawn is all of us after two hours,” one fan tweeted, while another called him a “meme king.”

Buckingham Palace prepared for a nanny to whisk Louis away if he misbehaved, but he only briefly disappeared an hour and a half in, returning to sing “God Save the King.”

Louis’ antics continued when he exited and drove to Buckingham Palace in a carriage with the Prince and Princess of Wales and his siblings.

Follow Page Six’s up-to-date coverage of King Charles III’s coronation

Prince George, 9, was back with his family members after spending Charles’ crowning with his fellow Pages of Honor.

As the mini royals passed onlookers, Louis gave the most enthusiastic waves and made solemn expressions with his face close to the window.

In June 2022, Louis made headlines for his dramatic reaction to the flypast, as well as the way he taunted Middleton during the Platinum Jubilee Pageant.

His parents poked fun at his behavior in an Instagram post at the time, writing, “We all had an incredible time, especially Louis.”

Uncle Mike Tindall told his “The Good, the Bad, the Rugby” podcast listeners that his nephew was experiencing a “complete sugar high.”

With his conduct in mind, Louis’ presence at the coronation was uncertain until he was photographed at the dress rehearsal Wednesday.

One month prior, a palace insider told Page Six his attendance was up in the air, explaining, “He’s only 4, after all.”

Louis, who turned 5 on April 23, notably missed Elizabeth’s funeral in September 2022.