Jessie J, 37, met with Kate, 43, at the Royal Variety Performance in London, and they shared a tender moment over their individual cancer battles, the pop star told Good Morning America.
Just before they stepped into the spotlight at the 98th Royal Variety Performance, William, 43, appeared to air kiss his wife's hand while they were still in their chauffeured car.
In her time as a royal, Kate Middleton has become exemplary at democratic dressing and has long understood the soft power of colour psychology, often giving a subtle nod through her fashion choices.
Kate embraced the singer while meeting a line-up of celebrities at the Royal Variety Performance at the Royal Albert Hall in London last night, which she attended with husband Prince William.
The Princess of Wales last night revealed the secret to her lighter 'bronde' hairdo during a backstage chat with actress Su Pollard at the Royal Variety Performance.
Prince William and Kate shared a sweet chat with Paddington at the Royal Variety Performance, but the Royals' love for the sandwich-wielding bear goes a long way back.
The royal couple greeted the entertainers after the Royal Variety Performance on Wednesday and Catherine shared an emotional moment with the singer, 37.