During the Second World War, George Formby served his country entertaining the troops throughout Europe and the Middle East including close to the Front. If there was no doubting his patriotism, the same could also be said of his friend from the Chinese laundry in Limehouse, London. George introduced Mr Wu in his 1932 song "Chinese Laundry Blues
," found him a bride, a new job cleaning windows when his laundry went bust, and then in 1942 recruited him to walk the streets of London ensuring people complied with the blackout.
According to the Brendan Ryan catalogue and discography of the Ukulele Man's work which was commissioned by the George Formby Society, he recorded "Mr Wu's An Air-Raid Warden Now" on May 31, 1942 for Regal Zonophone; it was written by Eddie Latta, and although fairly similar to the original, is an entirely different song. Running to around 2 minutes 45 seconds, Formby was accompanied by a full band.