Video: Grolsch celebrates 400th birthday with a "pop"

Beer brand Grolsch celebrated its 400th birthday with a video of people "popping" open their iconic flip-top bottlse of Grolsch beer. All the videos are played to the same theme, "Craftmanship is Mastery" ("Vakmanschap is meesterschap"), the tune the brewery used in its commercials for a number of years. Many everyday people made "pop" videos at the brewery's request, along with a number of Dutch celebrities, such as the cabaret duo Speelman and Speelman, director Johan Nijenhuis and the mayor of Enschede, Overijssel where Grolsch operations are based. Grolsch is the most drunk beer in the Overijssel province. The Dutch brewery is owned by SABMiller.