Smokey Green and the Louisiana Boys
In episode eight of season three of BBC period drama Downton Abbey, teenage tearaway Lady Rose MacClare (Lily James) is caught dancing and kissing the very married Terence Margadale (Edward Baker-Duly) to the hot jazz of this band in a London club called The Blue Dragon. The band's name is on the bass drum head. The episode is set in the year 1920.
See also The Cheerful Charlies