Kate Middleton, Prince William and Prince Harry Are the Cutest Cheerleaders at London Marathon

The three attended to support the team running for the Heads Together umbrella charity.

By Corinne Heller Apr 23, 2017 3:39 PMTags

Go, team, go!

Amid heightened security, Kate MiddletonPrince William and Prince Harry were the cutest cheerleaders at the 2017 Virgin Money London Marathon Sunday.

The three commanded attention as they pressed a large red button to give runners the green light to start the race, then watched from the sidelines, enthusiastically cheering on the 700 people running the 26 miles for Heads Together, the event's official charity. Kate, William and Harry wore matching black jackets with the group's logo.

The trio has for years spearheaded Heads Together's campaign to end the stigma around mental health.

Kate Middleton's Best Looks

Kate looked totally adorable wearing an oversized teal foam glove—the initiative's signature color, as she and the men clapped, waved, hugged and shook hands with fans and high-fived and passed out water bottles to runners. The Duchess of Cambridge even encountered Spider-Man!

Many runners did a double-take when they encountered the royals. Kate, William and Harry also posed for selfies.

Chris Jackson - WPA Pool/Getty Images
Chris Jackson - WPA Pool/Getty Images
Luke MacGregor - WPA Pool/Getty Images

Kate and William shared an adorable couple's moment, with him teasing her with an air horn.

Luke MacGregor - WPA Pool/Getty Images

Meanwhile, Harry shared an adorable bonding moment with a man's baby, sitting in a carrier.

The three later handed out medals to those who completed the marathon, whose route was protected by extra fencing and armed police officers. Harry also gave awards to Britain's David Weir, who won the Men's Wheelchair race, and to Switzerland's Manuela Schar, who won the Women's Wheelchair race.

Kate had hosted runners from the team at Kensington Palace last week, while Harry opened the 2017 Virgin Money London Marathon Expo.