Prince William and Kate ride the bus in London

Prince William and Kate, Duchess of Cambridge, surprised hundreds of commuters as they joined a charity appeal at London tube station on Tuesday -- which they arrived to by taking the bus.

The royal couple traveled on a classic 1960s Routemaster bus to the Kensington High Street station, where they met military personnel and volunteers in support of London Poppy Day.

Around 2,000 volunteers, including uniformed personnel and veterans, are hitting London's streets Thursday for the Royal British Legion's "Poppy Day" charity appeal ahead of Remembrance Sunday, when Britons honor their war dead.

William and Kate, 31, were joined by British actress Barbara Windsor, who is the RBL's Poppy Day ambassador. The "EastEnders" actress reportedly asked after the couple's son, Prince George, during the five-minute bus ride from their new home at Kensington Palace.

"He's half-asleep," Kate, wearing a red L.K. Bennett coat, replied, according to the Daily Mail. William added, "He's behaving himself this morning."

The Poppy Day appeal is aiming to raise 1 million pounds ($1.6 million) in a day.

The Royal British Legion provides care and support to current and former members of the U.K. armed forces and their families.

Prince Harry also stepped out Thursday to show support for British servicemen. He joined his grandfather, Prince Philip, in a ceremony on the grounds of Westminster Abbey to remember fallen soldiers.

Prince Harry and Prince Philip, Duke of Edinburgh, visit the Field of Remembrance at Westminster Abbey on Nov. 7, 2013, in London.


Watch CBSN Live

Watch CBS News anytime, anywhere with the new 24/7 digital news network. Stream CBSN live or on demand for FREE on your TV, computer, tablet, or smartphone.

Watch Now

New Android App

For your Android phone and tablet, download the FREE redesigned app, featuring CBSN, live 24/7 news.

The all new
CBS News App for Android® for iPad® for iPhone®
Fully redesigned. Featuring CBSN, 24/7 live news. Get the App