Subdwarf B stars are highly evolved stars which pulsate non-radially in several modes with different frequencies. Measurements enable astronomers to establish their overall properties and internal structure with unusual precision. In a second visit to use the phenomenal high-speed ULTRACAM photometer on the William Herschel Telescope in La Palma, Simon Jeffery teamed up with Conny Aerts (Nijmegen and Leuven) to observe one of these pulsating stars for six consecutive nights. Over 60,000 images were obtained, which when played in sequence show the star's oscillations in red, green and ultraviolet light. These observations were supported by 14 hours of observations from the brand new Faulkes Telescope North in Hawaii. The combined observations have revealed 19 pulsation frequencies including nine new ones. Moreover, groups of close multiplets give rise to complex beating patterns, and are indicative of the star's slow rotation rate. The results will enable pulsation modes to be identified and the total mass and radius of the star to be measured. Together, they will help to resolve fundamental questions about how subdwarf B stars were formed.