I'm sure the passengers did a double take on their ride to work in London, England today, as Prince William and wife Duchess Kate rode the bus with commuters.

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Here are the details according to stylelist.com:

"Kate Middleton and Prince William stepped out today in honor of London Poppy Day. The pair met with Royal British Legion supporters at Kensington Palace, and then shocked everyone when they hopped on a classic London bus to head to High Street Kensington station and visit military supporters and volunteers there. Commuters minding their business on a typical Thursday morning weren't quite expecting to see the Duke and Duchess of Cambridge stroll into the Tube station!

Kate looked elegant in a calf-length, bright red coat by L.K. Bennett, perfectly matching the poppy pins she was wearing for today's fundraising events. The poppy is the national symbol of Remembrance, and ahead of Remembrance Sunday many are out and about to raise funds."