Prince Louis brutally blows out sister Charlotte’s candle during Kate’s Christmas carol concert, leaving his royal sibling in trouble

Prince Louis brutally blew out his sister’s candle during Kate’s annual Christmas carol concert, leaving his royal siblings in stitches.

The cheeky prince, five, watched today as his mother, the Princess of Wales, hosted the special celebratory service at Westminster Abbey.

Princess Charlotte of Wales, Prince Louis of Wales and Prince George of Wales posted letters to Santa before the ‘Together At Christmas’ Carol Service

But after the service, the mischievous royal blew out Charlotte’s candle as Kate laughed.

Prince Louis was dressed in a checked shirt with a smart navy blue jacket, while Princess Charlotte wore a maroon jacket, paired with polished black shoes. While Prince George looked dapper in a white striped shirt, black blazer and tie.

However, this isn’t the first time Wales’ youngest children have stolen the show.

Prince George, Princess Charlotte and Prince Louis walk into Westminster Abbey with candles

The Princess of Wales watches as Louis blows out Charlotte’s candle

The fourth in line to the throne has become the center of attention during royal outings on several occasions.

When he took part in this year’s Trooping the Colour, the young royal had all eyes on him as he covered his nose and mouth in what is believed to be disgust after catching the smell of horse manure.

At the coronation, Prince Louis once again melted hearts in Westminster Abbey when he was spotted cheering for his grandfather, King Charles, exclaiming: ‘Yaaaay Say king. Yaaaaay king,” lip reading expert Jacqui Press told Femail.

Although the royal family did not attend the coronation concert as he was past his bedtime, fans of The Firm were left wondering where he was.

Just days after the big event, he got behind the wheel of a JCB excavator, sitting on Prince William’s lap as he moved the mechanical arm.