Chris Barber's Jazz Band, established in 1954, is a British traditional jazz ensemble led by trombonist Chris Barber. The band is known for its 1959 hit "Petite Fleur", which became a global success, and for playing a significant role in popularizing blues and R&B in the UK. Notable members have included Monty Sunshine, Lonnie Donegan, and Ottilie Patterson. Their distinctive sound combines elements of New Orleans jazz, skiffle, and blues, and they are credited with influencing the British blues boom of the 1960s.