Kate Middleton and Prince William attended the 76th EE BAFTA Film Awards.

Kate gave Prince William a light tap on the behind before the event.

The moment was captured on Instagram by Vogue.

Kate wore a white one-shoulder Alexander McQueen dress and long black gloves.

William wore a black suit with a matching bow tie and sleek shoes.

The ceremony was hosted by Richard E. Grant and Alison Hammond, with Julianne Moore and others presenting awards.

The couple missed the last two ceremonies due to diary constraints and Prince Philip's death.

Sunday marked their first time on the red carpet as the Prince and Princess of Wales.

King Charles III gave them the titles after his mother's death and called them the new Prince and Princess of Wales.