Prince George and Princess Charlotte steal the show at Prince Louis' christening

As we learned from last month's Swedish royal christening, christenings may be more about scene-stealing older siblings than the newborn. Just ask Prince George and Princess Charlotte, who stepped out for their two-month-old baby brother's baptism.

Although Queen Elizabeth and Prince Philip skipped the day of celebrations (the ceremony is usually reserved for immediate family members and the godparents), Princess Charlotte and Prince George were on their best behavior walking into the ceremony.

In one of the videos, the family of five can be seen entering The Royal Chapel at St. James' Palace, with Prince Louis in Duchess Kate's arms. Meanwhile, Charlotte, 3, and George, 4, are spotted holding on to Prince William's hands before they meet the Archbishop of Canterbury Justin Welby.

Polite as ever, the royal tots reach out to shake hands with another royal officiant, as aunt and uncle Prince Harry and Duchess Meghan linger behind and chat to Welby, who presided over their nuptials.

It seems that Princess Charlotte has, once again, mastered the royal wave. Cameras caught the adorable moment as the family left the church following the 40-minute service.

Too cute!

Scroll through below to see all the photos from the big day: